diff --git a/.docs/.openapi/api-data.yaml b/.docs/.openapi/api-data.yaml
index bd14ba55057657c5a38d47cc29875d41e5cc1e71..24ace0b9bc592045b6cc96043dc249ae513e8580 100644
--- a/.docs/.openapi/api-data.yaml
+++ b/.docs/.openapi/api-data.yaml
@@ -8,10 +8,10 @@ info:
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0
-  version: 1.6.2
+  version: 1.7.0
 externalDocs:
   description: Sourcecode Documentation
-  url: https://www.ifs.tuwien.ac.at/infrastructures/dbrepo/1.6.2/system-services-metadata/
+  url: https://www.ifs.tuwien.ac.at/infrastructures/dbrepo/1.7.0/system-services-metadata/
 servers:
 - url: http://localhost
   description: Development instance
@@ -24,22 +24,21 @@ paths:
       - view-endpoint
       summary: Get view data
       description: "Gets data from a view of a database. For private databases, the\
-        \ user needs at least *READ* access to the associated database. Requires role\
-        \ `view-database-view-data`."
+        \ user needs at least *READ* access to the associated database."
       operationId: getData
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: page
         in: query
         required: false
@@ -59,32 +58,26 @@ paths:
           type: string
           format: date-time
       responses:
-        "503":
-          description: Failed to establish connection with the metadata service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "404":
           description: Failed to find view in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "409":
-          description: View schema could not be mapped
+        "403":
+          description: Not allowed to retrieve view data
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Request pagination is malformed
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to retrieve view data
+        "400":
+          description: Request pagination is malformed
           content:
             application/json:
               schema:
@@ -104,6 +97,12 @@ paths:
             application/json:
               schema:
                 type: string
+        "409":
+          description: View schema could not be mapped
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -112,22 +111,21 @@ paths:
       - view-endpoint
       summary: Get view data
       description: "Gets data from a view of a database. For private databases, the\
-        \ user needs at least *READ* access to the associated database. Requires role\
-        \ `view-database-view-data`."
+        \ user needs at least *READ* access to the associated database."
       operationId: getData_1
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: page
         in: query
         required: false
@@ -147,32 +145,26 @@ paths:
           type: string
           format: date-time
       responses:
-        "503":
-          description: Failed to establish connection with the metadata service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "404":
           description: Failed to find view in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "409":
-          description: View schema could not be mapped
+        "403":
+          description: Not allowed to retrieve view data
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Request pagination is malformed
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to retrieve view data
+        "400":
+          description: Request pagination is malformed
           content:
             application/json:
               schema:
@@ -192,6 +184,12 @@ paths:
             application/json:
               schema:
                 type: string
+        "409":
+          description: View schema could not be mapped
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -210,14 +208,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -237,20 +235,20 @@ paths:
           type: integer
           format: int64
       responses:
-        "400":
-          description: Request pagination or table data select query is malformed
+        "404":
+          description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find table in metadata database
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -292,14 +290,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Authorization
         in: header
         required: true
@@ -312,20 +310,20 @@ paths:
               $ref: "#/components/schemas/TupleUpdateDto"
         required: true
       responses:
-        "400":
-          description: Request pagination or table data select query is malformed
+        "404":
+          description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find table in metadata database
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -354,14 +352,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Authorization
         in: header
         required: true
@@ -374,21 +372,12 @@ paths:
               $ref: "#/components/schemas/TupleDto"
         required: true
       responses:
-        "404":
-          description: Failed to find table in metadata database or blob in storage
-            service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "400":
           description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "201":
-          description: Created table data
         "503":
           description: Failed to establish connection with the metadata service or
             storage service
@@ -402,6 +391,15 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "201":
+          description: Created table data
+        "404":
+          description: Failed to find table in metadata database or blob in storage
+            service
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -418,14 +416,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Authorization
         in: header
         required: true
@@ -438,20 +436,20 @@ paths:
               $ref: "#/components/schemas/TupleDeleteDto"
         required: true
       responses:
-        "400":
-          description: Request pagination or table data select query is malformed
+        "404":
+          description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find table in metadata database
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -481,14 +479,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -508,20 +506,20 @@ paths:
           type: integer
           format: int64
       responses:
-        "400":
-          description: Request pagination or table data select query is malformed
+        "404":
+          description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find table in metadata database
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -565,14 +563,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: subsetId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -592,8 +590,21 @@ paths:
           type: integer
           format: int64
       responses:
-        "503":
-          description: Failed to communicate with database
+        "404":
+          description: Failed to find database in metadata database or query in query
+            store of the data database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Not allowed to retrieve subset data
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "400":
+          description: Invalid pagination
           content:
             application/json:
               schema:
@@ -619,21 +630,8 @@ paths:
             application/json:
               schema:
                 type: string
-        "400":
-          description: Invalid pagination
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database in metadata database or query in query
-            store of the data database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to retrieve subset data
+        "503":
+          description: Failed to communicate with database
           content:
             application/json:
               schema:
@@ -655,14 +653,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: subsetId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -682,8 +680,21 @@ paths:
           type: integer
           format: int64
       responses:
-        "503":
-          description: Failed to communicate with database
+        "404":
+          description: Failed to find database in metadata database or query in query
+            store of the data database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Not allowed to retrieve subset data
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "400":
+          description: Invalid pagination
           content:
             application/json:
               schema:
@@ -709,21 +720,8 @@ paths:
             application/json:
               schema:
                 type: string
-        "400":
-          description: Invalid pagination
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database in metadata database or query in query
-            store of the data database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to retrieve subset data
+        "503":
+          description: Failed to communicate with database
           content:
             application/json:
               schema:
@@ -743,14 +741,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: queryId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -758,8 +756,8 @@ paths:
               $ref: "#/components/schemas/QueryPersistDto"
         required: true
       responses:
-        "503":
-          description: Failed to communicate with database
+        "403":
+          description: Not allowed to persist subset
           content:
             application/json:
               schema:
@@ -770,27 +768,27 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/QueryDto"
-        "403":
-          description: Not allowed to persist subset
+        "404":
+          description: Failed to find database in metadata database or query in query
+            store of the data database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "417":
-          description: Failed to persist subset
+        "400":
+          description: Malformed select query
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database in metadata database or query in query
-            store of the data database
+        "417":
+          description: Failed to persist subset
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Malformed select query
+        "503":
+          description: Failed to communicate with database
           content:
             application/json:
               schema:
@@ -813,14 +811,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Authorization
         in: header
         required: true
@@ -835,20 +833,14 @@ paths:
       responses:
         "202":
           description: Imported dataset successfully
-        "503":
-          description: Failed to establish connection with the metadata service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "404":
           description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Import table dataset not allowed
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -859,6 +851,12 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Import table dataset not allowed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -878,20 +876,22 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: persisted
         in: query
         required: false
         schema:
           type: boolean
       responses:
-        "503":
-          description: Failed to communicate with database
+        "200":
+          description: Found subsets
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
+                type: array
+                items:
+                  $ref: "#/components/schemas/QueryDto"
         "404":
           description: Failed to find database in metadata database or query in query
             store of the data database
@@ -899,16 +899,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "200":
-          description: Found subsets
+        "403":
+          description: Not allowed to find subsets
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: "#/components/schemas/QueryDto"
-        "403":
-          description: Not allowed to find subsets
+                $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to communicate with database
           content:
             application/json:
               schema:
@@ -930,8 +928,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -954,7 +952,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/ExecuteStatementDto"
+              $ref: "#/components/schemas/SubsetDto"
         required: true
       responses:
         "201":
@@ -963,12 +961,6 @@ paths:
             application/json:
               schema:
                 type: string
-        "503":
-          description: Failed to communicate with database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "501":
           description: Failed to execute query as it contains non-supported keywords
           content:
@@ -988,14 +980,20 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "417":
+          description: Failed to insert query into query store of data database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "400":
           description: Malformed select query
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "417":
-          description: Failed to insert query into query store of data database
+        "503":
+          description: Failed to communicate with database
           content:
             application/json:
               schema:
@@ -1017,14 +1015,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -1032,20 +1030,26 @@ paths:
           type: string
           format: date-time
       responses:
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or view data select query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Export view data not allowed
+        "404":
+          description: Failed to find view in metadata database or export dataset
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find view in metadata database or export dataset
+        "503":
+          description: Failed to establish connection with the metadata service
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Export view data not allowed
           content:
             application/json:
               schema:
@@ -1057,12 +1061,6 @@ paths:
               schema:
                 type: string
                 format: binary
-        "400":
-          description: Request pagination or view data select query is malformed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -1080,14 +1078,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: size
         in: query
         required: false
@@ -1095,6 +1093,14 @@ paths:
           type: integer
           format: int64
       responses:
+        "200":
+          description: Found table history
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/TableHistoryDto"
         "403":
           description: Find table history not allowed
           content:
@@ -1107,26 +1113,18 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find table history in data database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "400":
           description: "Invalid pagination size request, must be > 0"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "200":
-          description: Found table history
+        "404":
+          description: Failed to find table history in data database
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: "#/components/schemas/TableHistoryDto"
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -1144,14 +1142,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: timestamp
         in: query
         required: false
@@ -1159,14 +1157,14 @@ paths:
           type: string
           format: date-time
       responses:
-        "400":
-          description: Request pagination or table data select query is malformed
+        "404":
+          description: Failed to find table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to establish connection with the metadata service
+        "400":
+          description: Request pagination or table data select query is malformed
           content:
             application/json:
               schema:
@@ -1178,8 +1176,8 @@ paths:
               schema:
                 type: string
                 format: binary
-        "404":
-          description: Failed to find table in metadata database
+        "503":
+          description: Failed to establish connection with the metadata service
           content:
             application/json:
               schema:
@@ -1209,14 +1207,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: subsetId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Accept
         in: header
         required: true
@@ -1229,31 +1227,25 @@ paths:
           type: string
           format: date-time
       responses:
-        "503":
-          description: Failed to communicate with database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to find subset
+        "200":
+          description: Found subset
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
+                $ref: "#/components/schemas/QueryDto"
+            text/csv: {}
         "406":
           description: Failed to find acceptable representation
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "200":
-          description: Found subset
+        "403":
+          description: Not allowed to find subset
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/QueryDto"
-            text/csv: {}
+                $ref: "#/components/schemas/ApiErrorDto"
         "404":
           description: Failed to find database in metadata database or query in query
             store of the data database
@@ -1267,6 +1259,12 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to communicate with database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - basicAuth: []
       - bearerAuth: []
@@ -1395,9 +1393,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 11
+          type: string
+          format: uuid
+          example: e41f94a6-2b94-4a12-ac0e-678684e1c070
         affiliation:
           type: string
           example: Brown University
@@ -1435,6 +1433,7 @@ components:
       required:
       - creators
       - database_id
+      - descriptions
       - id
       - owned_by
       - publication_year
@@ -1445,9 +1444,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: b97cd56b-66ca-4354-9e6c-f47210cfaaec
         type:
           type: string
           example: database
@@ -1464,6 +1463,10 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/IdentifierTitleDto"
+        descriptions:
+          type: array
+          items:
+            $ref: "#/components/schemas/IdentifierDescriptionDto"
         doi:
           type: string
           example: 10.1038/nphys1170
@@ -1477,21 +1480,18 @@ components:
           - draft
           - published
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         query_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         publication_year:
           type: integer
           format: int32
@@ -1500,15 +1500,225 @@ components:
           type: string
           format: uuid
           example: 2f45ef7a-7f9b-4667-9156-152c87fe1ca5
+    IdentifierDescriptionDto:
+      required:
+      - id
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: e0e9692c-910b-4b60-b53a-fc7c358a917d
+        description:
+          type: string
+          example: "Air quality reports at Stephansplatz, Vienna"
+        language:
+          type: string
+          example: en
+          enum:
+          - ab
+          - aa
+          - af
+          - ak
+          - sq
+          - am
+          - ar
+          - an
+          - hy
+          - as
+          - av
+          - ae
+          - ay
+          - az
+          - bm
+          - ba
+          - eu
+          - be
+          - bn
+          - bh
+          - bi
+          - bs
+          - br
+          - bg
+          - my
+          - ca
+          - km
+          - ch
+          - ce
+          - ny
+          - zh
+          - cu
+          - cv
+          - kw
+          - co
+          - cr
+          - hr
+          - cs
+          - da
+          - dv
+          - nl
+          - dz
+          - en
+          - eo
+          - et
+          - ee
+          - fo
+          - fj
+          - fi
+          - fr
+          - ff
+          - gd
+          - gl
+          - lg
+          - ka
+          - de
+          - ki
+          - el
+          - kl
+          - gn
+          - gu
+          - ht
+          - ha
+          - he
+          - hz
+          - hi
+          - ho
+          - hu
+          - is
+          - io
+          - ig
+          - id
+          - ia
+          - ie
+          - iu
+          - ik
+          - ga
+          - it
+          - ja
+          - jv
+          - kn
+          - kr
+          - ks
+          - kk
+          - rw
+          - kv
+          - kg
+          - ko
+          - kj
+          - ku
+          - ky
+          - lo
+          - la
+          - lv
+          - lb
+          - li
+          - ln
+          - lt
+          - lu
+          - mk
+          - mg
+          - ms
+          - ml
+          - mt
+          - gv
+          - mi
+          - mr
+          - mh
+          - ro
+          - mn
+          - na
+          - nv
+          - nd
+          - ng
+          - ne
+          - se
+          - "no"
+          - nb
+          - nn
+          - ii
+          - oc
+          - oj
+          - or
+          - om
+          - os
+          - pi
+          - pa
+          - ps
+          - fa
+          - pl
+          - pt
+          - qu
+          - rm
+          - rn
+          - ru
+          - sm
+          - sg
+          - sa
+          - sc
+          - sr
+          - sn
+          - sd
+          - si
+          - sk
+          - sl
+          - so
+          - st
+          - nr
+          - es
+          - su
+          - sw
+          - ss
+          - sv
+          - tl
+          - ty
+          - tg
+          - ta
+          - tt
+          - te
+          - th
+          - bo
+          - ti
+          - to
+          - ts
+          - tn
+          - tr
+          - tk
+          - tw
+          - ug
+          - uk
+          - ur
+          - uz
+          - ve
+          - vi
+          - vo
+          - wa
+          - cy
+          - fy
+          - wo
+          - xh
+          - yi
+          - yo
+          - za
+          - zu
+        type:
+          type: string
+          example: Abstract
+          enum:
+          - Abstract
+          - Methods
+          - SeriesInformation
+          - TableOfContents
+          - TechnicalInfo
+          - Other
     IdentifierTitleDto:
       required:
       - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 70ce5164-fd74-413f-8712-f996b91defbf
         title:
           type: string
           example: Airquality Demonstrator
@@ -1721,9 +1931,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 83ea2326-f8f6-4263-baf8-cdf88a54efc7
         owner:
           $ref: "#/components/schemas/UserBriefDto"
         execution:
@@ -1744,9 +1954,9 @@ components:
           items:
             $ref: "#/components/schemas/IdentifierBriefDto"
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         query_normalized:
           type: string
           example: SELECT `id` FROM `air_quality`
@@ -1829,14 +2039,72 @@ components:
         line_termination:
           type: string
           example: \r\n
-    ExecuteStatementDto:
+    FilterDto:
+      required:
+      - column_id
+      - operator_id
+      - type
+      - value
+      type: object
+      properties:
+        type:
+          type: string
+          example: where
+          enum:
+          - where
+          - or
+          - and
+        value:
+          type: string
+          example: "1"
+        column_id:
+          type: string
+          format: uuid
+          example: 14128033-54b5-4818-a489-21b0dded86e2
+        operator_id:
+          type: string
+          format: uuid
+          example: 67c5b54d-2eb0-4f42-8dc1-a504562e9f32
+    OrderDto:
       required:
-      - statement
+      - column_id
       type: object
       properties:
-        statement:
+        direction:
           type: string
-          example: SELECT `id` FROM `air_quality`
+          example: asc
+          enum:
+          - asc
+          - desc
+        column_id:
+          type: string
+          format: uuid
+          example: e891ba86-0258-41a6-a8d9-ff58bc10b618
+    SubsetDto:
+      required:
+      - columns
+      - table_id
+      type: object
+      properties:
+        columns:
+          type: array
+          example:
+          - e891ba86-0258-41a6-a8d9-ff58bc10b618
+          items:
+            type: string
+            format: uuid
+        filter:
+          type: array
+          items:
+            $ref: "#/components/schemas/FilterDto"
+        order:
+          type: array
+          items:
+            $ref: "#/components/schemas/OrderDto"
+        table_id:
+          type: string
+          format: uuid
+          example: f7df2a7d-4ade-4c78-97b0-7c744d0893c7
     TableHistoryDto:
       required:
       - event
@@ -1850,6 +2118,10 @@ components:
           example: 2021-03-12T15:26:21Z
         event:
           type: string
+          example: INSERT
+          enum:
+          - insert
+          - delete
         total:
           type: integer
           format: int64
diff --git a/.docs/.openapi/api-metadata.yaml b/.docs/.openapi/api-metadata.yaml
index 18fb71db29de89369c93de29296e1d85abc58b37..7331cf78f7d208d70973ddc04019a39bc5af993c 100644
--- a/.docs/.openapi/api-metadata.yaml
+++ b/.docs/.openapi/api-metadata.yaml
@@ -8,16 +8,146 @@ info:
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0
-  version: 1.6.2
+  version: 1.7.0
 externalDocs:
   description: Sourcecode Documentation
-  url: https://www.ifs.tuwien.ac.at/infrastructures/dbrepo/1.6.2/system-services-metadata/
+  url: https://www.ifs.tuwien.ac.at/infrastructures/dbrepo/1.7.0/system-services-metadata/
 servers:
 - url: http://localhost
   description: Development instance
 - url: https://test.dbrepo.tuwien.ac.at
   description: Staging instance
 paths:
+  /api/user/{userId}:
+    get:
+      tags:
+      - user-endpoint
+      summary: Get user
+      description: Gets own user information from the metadata database. Requires
+        authentication. Foreign user information can only be obtained if additional
+        role `find-foreign-user` is present. Finding information about internal users
+        results in a 404 error.
+      operationId: find
+      parameters:
+      - name: userId
+        in: path
+        required: true
+        schema:
+          type: string
+          format: uuid
+      responses:
+        "403":
+          description: Find user is not permitted
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "200":
+          description: Found user
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/UserDto"
+        "404":
+          description: User was not found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+      security:
+      - bearerAuth: []
+      - basicAuth: []
+    put:
+      tags:
+      - user-endpoint
+      summary: Update user
+      description: Updates user with id. Requires role `modify-user-information`.
+      operationId: modify
+      parameters:
+      - name: userId
+        in: path
+        required: true
+        schema:
+          type: string
+          format: uuid
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/UserUpdateDto"
+        required: true
+      responses:
+        "400":
+          description: Modify user query is malformed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Not allowed to modify user metadata
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "404":
+          description: Failed to find database/user in metadata database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to modify user at auth service
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "202":
+          description: Modified user information
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/UserDto"
+      security:
+      - bearerAuth: []
+      - basicAuth: []
+    head:
+      tags:
+      - user-endpoint
+      summary: Get user
+      description: Gets own user information from the metadata database. Requires
+        authentication. Foreign user information can only be obtained if additional
+        role `find-foreign-user` is present. Finding information about internal users
+        results in a 404 error.
+      operationId: find_1
+      parameters:
+      - name: userId
+        in: path
+        required: true
+        schema:
+          type: string
+          format: uuid
+      responses:
+        "403":
+          description: Find user is not permitted
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "200":
+          description: Found user
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/UserDto"
+        "404":
+          description: User was not found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+      security:
+      - bearerAuth: []
+      - basicAuth: []
   /api/database:
     get:
       tags:
@@ -56,7 +186,7 @@ paths:
       - database-endpoint
       summary: Create database
       description: Creates a database in the container with id. Requires roles `create-database`.
-      operationId: create_5
+      operationId: create_4
       requestBody:
         content:
           application/json:
@@ -64,9 +194,8 @@ paths:
               $ref: "#/components/schemas/CreateDatabaseDto"
         required: true
       responses:
-        "403":
-          description: Database create permission is missing or grant permissions
-            at broker service failed
+        "400":
+          description: Database create query is malformed or image is not supported
           content:
             application/json:
               schema:
@@ -77,26 +206,21 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Database create query is malformed or image is not supported
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "403":
+          description: Database create permission is missing or grant permissions
+            at broker service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to fin container/user/database in metadata database
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "409":
+          description: Query store could not be created
           content:
             application/json:
               schema:
@@ -107,8 +231,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/DatabaseBriefDto"
-        "409":
-          description: Query store could not be created
+        "404":
+          description: Failed to fin container/user/database in metadata database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -158,14 +288,14 @@ paths:
         \ with HTTP method **HEAD** only the status. When the user has at least *READ*\
         \ access, the status 200 is returned, 403 otherwise. Requires role `check-database-access`\
         \ or `check-foreign-database-access`."
-      operationId: find
+      operationId: find_2
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: userId
         in: path
         required: true
@@ -173,12 +303,6 @@ paths:
           type: string
           format: uuid
       responses:
-        "200":
-          description: Found database access
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/DatabaseAccessDto"
         "403":
           description: No access to this database
           content:
@@ -191,6 +315,12 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "200":
+          description: Found database access
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/DatabaseAccessDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -206,8 +336,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: userId
         in: path
         required: true
@@ -221,36 +351,36 @@ paths:
               $ref: "#/components/schemas/CreateAccessDto"
         required: true
       responses:
-        "403":
-          description: Modify access not permitted when no access is granted in the
-            first place
+        "404":
+          description: Database or user not found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Access could not be updated due to connection error in the
-            data service
+        "403":
+          description: Modify access not permitted when no access is granted in the
+            first place
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Access could not be updated in the data service
+        "400":
+          description: Modify access query or database connection is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
         "202":
           description: Modified access
-        "404":
-          description: Database or user not found
+        "503":
+          description: Access could not be updated in the data service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Modify access query or database connection is malformed
+        "502":
+          description: Access could not be updated due to connection error in the
+            data service
           content:
             application/json:
               schema:
@@ -264,14 +394,14 @@ paths:
       summary: Give access
       description: Give a user with given id access to some database with given id.
         Requires role `create-database-access`.
-      operationId: create_8
+      operationId: create_7
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: userId
         in: path
         required: true
@@ -285,8 +415,8 @@ paths:
               $ref: "#/components/schemas/CreateAccessDto"
         required: true
       responses:
-        "502":
-          description: Access could not be created due to connection error
+        "404":
+          description: Database or user not found
           content:
             application/json:
               schema:
@@ -297,30 +427,30 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Granting access query or database connection is malformed
+        "502":
+          description: Access could not be created due to connection error
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Failed giving access
+        "202":
+          description: Granting access succeeded
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Database or user not found
+                $ref: "#/components/schemas/DatabaseAccessDto"
+        "400":
+          description: Granting access query or database connection is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Granting access succeeded
+        "403":
+          description: Failed giving access
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/DatabaseAccessDto"
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -336,8 +466,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: userId
         in: path
         required: true
@@ -345,20 +475,24 @@ paths:
           type: string
           format: uuid
       responses:
+        "403":
+          description: Revoke of access not permitted as no access was found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "502":
           description: Access could not be created due to connection error
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Revoke of access not permitted as no access was found
+        "503":
+          description: Access could not be revoked in the data service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Deleted access
         "400":
           description: Modify access query or database connection is malformed
           content:
@@ -371,12 +505,8 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Access could not be revoked in the data service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
+        "202":
+          description: Deleted access
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -389,14 +519,14 @@ paths:
         \ with HTTP method **HEAD** only the status. When the user has at least *READ*\
         \ access, the status 200 is returned, 403 otherwise. Requires role `check-database-access`\
         \ or `check-foreign-database-access`."
-      operationId: find_1
+      operationId: find_3
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: userId
         in: path
         required: true
@@ -404,12 +534,6 @@ paths:
           type: string
           format: uuid
       responses:
-        "200":
-          description: Found database access
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/DatabaseAccessDto"
         "403":
           description: No access to this database
           content:
@@ -422,259 +546,29 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-      security:
-      - bearerAuth: []
-      - basicAuth: []
-  /api/user/{userId}:
-    get:
-      tags:
-      - user-endpoint
-      summary: Get user
-      description: Gets own user information from the metadata database. Requires
-        authentication. Foreign user information can only be obtained if additional
-        role `find-foreign-user` is present. Finding information about internal users
-        results in a 404 error.
-      operationId: find_2
-      parameters:
-      - name: userId
-        in: path
-        required: true
-        schema:
-          type: string
-          format: uuid
-      responses:
-        "404":
-          description: User was not found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
-          description: Found user
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/UserDto"
-        "403":
-          description: Find user is not permitted
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-      security:
-      - bearerAuth: []
-      - basicAuth: []
-    put:
-      tags:
-      - user-endpoint
-      summary: Update user
-      description: Updates user with id. Requires role `modify-user-information`.
-      operationId: modify
-      parameters:
-      - name: userId
-        in: path
-        required: true
-        schema:
-          type: string
-          format: uuid
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/UserUpdateDto"
-        required: true
-      responses:
-        "202":
-          description: Modified user information
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/UserDto"
-        "403":
-          description: Not allowed to modify user metadata
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Modify user query is malformed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database/user in metadata database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-      security:
-      - bearerAuth: []
-      - basicAuth: []
-  /api/user/{userId}/password:
-    put:
-      tags:
-      - user-endpoint
-      summary: Update user password
-      description: Updates password of user with id. Requires authentication.
-      operationId: password
-      parameters:
-      - name: userId
-        in: path
-        required: true
-        schema:
-          type: string
-          format: uuid
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/UserPasswordDto"
-        required: true
-      responses:
-        "400":
-          description: Invalid password payload
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Modified user password
-        "403":
-          description: Not allowed to change foreign user password
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database/user in metadata database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to get user in auth service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to auth service failed
+          description: Found database access
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
+                $ref: "#/components/schemas/DatabaseAccessDto"
       security:
       - bearerAuth: []
       - basicAuth: []
-  /api/user/token:
-    put:
-      tags:
-      - user-endpoint
-      summary: Refresh token
-      description: Refreshes user token by refresh token.
-      operationId: refreshToken
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/RefreshTokenRequestDto"
-        required: true
-      responses:
-        "403":
-          description: Not allowed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Invalid refresh token
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Refreshed user token
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/TokenDto"
-        "502":
-          description: Connection to auth service failed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-    post:
-      tags:
-      - user-endpoint
-      summary: Create token
-      description: Creates a user token via the Auth Service.
-      operationId: getToken
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/LoginRequestDto"
-        required: true
-      responses:
-        "404":
-          description: Failed to find user in auth database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "428":
-          description: Account is not fully setup in auth service (requires password
-            change?)
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Invalid login request
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Obtained user token
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/TokenDto"
-        "403":
-          description: Not allowed to get token
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to get user in auth service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to auth service failed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
   /api/ontology/{ontologyId}:
     get:
       tags:
       - ontology-endpoint
       summary: Find ontology
       description: Finds an ontology with id in the metadata database.
-      operationId: find_3
+      operationId: find_4
       parameters:
       - name: ontologyId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
         "200":
           description: Find one ontology
@@ -699,8 +593,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -734,19 +628,19 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "202":
+          description: Deleted ontology successfully
+          content:
+            application/json: {}
         "404":
           description: Could not find ontology
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Deleted ontology successfully
-          content:
-            application/json: {}
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -762,8 +656,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -797,8 +691,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
         "404":
           description: Could not find message
@@ -825,21 +719,21 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "200":
-          description: Found image
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ImageDto"
         "404":
           description: Image could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "200":
+          description: Found image
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ImageDto"
     put:
       tags:
       - image-endpoint
@@ -852,8 +746,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -888,17 +782,17 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "202":
+          description: Deleted image successfully
         "404":
           description: Image could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Deleted image successfully
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -909,22 +803,22 @@ paths:
       summary: Find identifier
       description: Finds an identifier with id. The response format depends on the
         HTTP `Accept` header set on the request.
-      operationId: find_6
+      operationId: find_7
       parameters:
       - name: identifierId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Accept
         in: header
         required: true
         schema:
           type: string
       responses:
-        "410":
-          description: Failed to retrieve from S3 endpoint
+        "404":
+          description: Identifier could not be found
           content:
             application/json:
               schema:
@@ -935,12 +829,30 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "410":
+          description: Failed to retrieve from S3 endpoint
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "503":
           description: Failed to find in data service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Not allowed to view identifier
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "406":
+          description: Failed to find acceptable representation
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Found identifier successfully
           content:
@@ -956,27 +868,15 @@ paths:
             text/bibliography; style=apa: {}
             text/bibliography; style=ieee: {}
             text/bibliography; style=bibtex: {}
-        "400":
-          description: "Identifier could not be exported, the requested style is not\
-            \ known"
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "409":
           description: Exported resource was not found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Identifier could not be found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "406":
-          description: Failed to find acceptable representation
+        "400":
+          description: "Identifier could not be exported, the requested style is not\
+            \ known"
           content:
             application/json:
               schema:
@@ -995,8 +895,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1004,14 +904,20 @@ paths:
               $ref: "#/components/schemas/IdentifierSaveDto"
         required: true
       responses:
+        "202":
+          description: Saved identifier
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/IdentifierDto"
         "400":
           description: Identifier form contains invalid request data
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: "Failed to find database, table or view"
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
@@ -1022,24 +928,18 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "404":
+          description: "Failed to find database, table or view"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Saved identifier
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/IdentifierDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1054,8 +954,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
         "403":
           description: Deleting identifier not permitted
@@ -1063,26 +963,26 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Identifier or database could not be found
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to delete in search service
+        "404":
+          description: Identifier or database could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "202":
+          description: Deleted identifier
+        "503":
+          description: Failed to delete in search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Deleted identifier
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1099,17 +999,23 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "202":
+          description: Published identifier
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/IdentifierDto"
         "400":
           description: Identifier form contains invalid request data
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: "Failed to find database, table or view"
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
@@ -1120,24 +1026,18 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "404":
+          description: "Failed to find database, table or view"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Published identifier
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/IdentifierDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1154,8 +1054,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1163,38 +1063,38 @@ paths:
               $ref: "#/components/schemas/DatabaseModifyVisibilityDto"
         required: true
       responses:
-        "400":
-          description: The visibility payload is malformed
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Visibility modified successfully
+        "404":
+          description: Failed to find database in metadata database
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/DatabaseBriefDto"
-        "503":
-          description: Failed to save in search service
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Visibility modification is not permitted
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "202":
+          description: Visibility modified successfully
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database in metadata database
+                $ref: "#/components/schemas/DatabaseBriefDto"
+        "400":
+          description: The visibility payload is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Visibility modification is not permitted
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1208,60 +1108,35 @@ paths:
       - view-endpoint
       summary: Get view
       description: Gets a view with id in the metadata database.
-      operationId: find_7
+      operationId: find_8
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "403":
-          description: Find view is not permitted
+        "404":
+          description: "Database, view or user could not be found"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: "Database, view or user could not be found"
+        "403":
+          description: Find view is not permitted
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Find view successfully
-          headers:
-            X-Username:
-              description: The authentication username
-              style: simple
-            Access-Control-Expose-Headers:
-              description: Expose custom headers
-              style: simple
-            X-Type:
-              description: The JDBC connection type
-              style: simple
-            X-View:
-              description: The view internal name
-              style: simple
-            X-Database:
-              description: The database internal name
-              style: simple
-            X-Password:
-              description: The authentication password
-              style: simple
-            X-Host:
-              description: The database hostname
-              style: simple
-            X-Port:
-              description: The database port number
-              style: simple
           content:
             application/json:
               schema:
@@ -1281,14 +1156,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1296,20 +1171,20 @@ paths:
               $ref: "#/components/schemas/ViewUpdateDto"
         required: true
       responses:
-        "403":
-          description: Update not allowed
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "404":
+          description: Database or View could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Database or View could not be found
+        "400":
+          description: Update view query is malformed
           content:
             application/json:
               schema:
@@ -1320,14 +1195,14 @@ paths:
             '*/*':
               schema:
                 $ref: "#/components/schemas/ViewBriefDto"
-        "502":
-          description: Connection to search service failed
+        "403":
+          description: Update not allowed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Update view query is malformed
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1346,31 +1221,31 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: viewId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "202":
-          description: Delete view successfully
-        "423":
-          description: Delete view resulted in an invalid query statement
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "404":
           description: "Database, view or user could not be found"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Delete view query is malformed
+        "502":
+          description: Connection to search service failed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "202":
+          description: Delete view successfully
+        "403":
+          description: Deletion not allowed
           content:
             application/json:
               schema:
@@ -1381,14 +1256,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "400":
+          description: Delete view query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Deletion not allowed
+        "423":
+          description: Delete view resulted in an invalid query statement
           content:
             application/json:
               schema:
@@ -1411,17 +1286,17 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "502":
-          description: Failed to establish connection with broker service
+        "403":
+          description: Access to the database is forbidden
           content:
             application/json:
               schema:
@@ -1432,34 +1307,12 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to obtain queue information from broker service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Find table successfully
-          headers:
-            X-Username:
-              description: The authentication username
-              style: simple
-            Access-Control-Expose-Headers:
-              description: Expose custom headers
-              style: simple
-            X-Password:
-              description: The authentication password
-              style: simple
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/TableDto"
-        "403":
-          description: Access to the database is forbidden
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1474,14 +1327,14 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1489,38 +1342,38 @@ paths:
               $ref: "#/components/schemas/TableUpdateDto"
         required: true
       responses:
-        "400":
-          description: Update table visibility payload is malformed
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "404":
+          description: Table could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "403":
+          description: Update table visibility not permitted
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Updated the table
+        "400":
+          description: Update table visibility payload is malformed
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/TableBriefDto"
-        "403":
-          description: Update table visibility not permitted
+                $ref: "#/components/schemas/ApiErrorDto"
+        "202":
+          description: Updated the table
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Table could not be found
+                $ref: "#/components/schemas/TableBriefDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1541,43 +1394,43 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "400":
-          description: Delete table query resulted in an invalid query statement
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Delete table successfully
-        "404":
-          description: "Table, database or container could not be found"
+        "400":
+          description: Delete table query resulted in an invalid query statement
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "403":
+          description: Access to the database is forbidden
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "404":
+          description: "Table, database or container could not be found"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Access to the database is forbidden
+        "202":
+          description: Delete table successfully
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1599,29 +1452,23 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "400":
-          description: Failed to map column statistic to known columns
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not the owner
+        "400":
+          description: Failed to map column statistic to known columns
           content:
             application/json:
               schema:
@@ -1632,14 +1479,20 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "403":
+          description: Not the owner
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
         "202":
           description: Updated table statistics successfully
+        "503":
+          description: Failed to save in search service
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1658,20 +1511,20 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: columnId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1679,39 +1532,39 @@ paths:
               $ref: "#/components/schemas/ColumnSemanticsUpdateDto"
         required: true
       responses:
-        "503":
-          description: Failed to save in search service
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Updated column semantics successfully
+        "403":
+          description: Access to the database is forbidden
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ColumnDto"
-        "404":
-          description: Failed to find user/table/database/ontology in metadata database
+                $ref: "#/components/schemas/ApiErrorDto"
+        "400":
+          description: Update semantic concept query is malformed or update unit of
+            measurement query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "404":
+          description: Failed to find user/table/database/ontology in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Update semantic concept query is malformed or update unit of
-            measurement query is malformed
+        "202":
+          description: Updated column semantics successfully
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Access to the database is forbidden
+                $ref: "#/components/schemas/ColumnDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1732,8 +1585,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1741,38 +1594,38 @@ paths:
               $ref: "#/components/schemas/DatabaseTransferDto"
         required: true
       responses:
-        "400":
-          description: Owner payload is malformed
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Transfer of ownership was successful
+        "400":
+          description: Owner payload is malformed
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/DatabaseBriefDto"
-        "503":
-          description: Failed to save in search service
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Transfer of ownership is not permitted
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "404":
+          description: Database or user could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Transfer of ownership is not permitted
+        "202":
+          description: Transfer of ownership was successful
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Database or user could not be found
+                $ref: "#/components/schemas/DatabaseBriefDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1794,9 +1647,15 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "502":
+          description: Connection to search service failed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Refreshed database views metadata
           content:
@@ -1809,20 +1668,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "404":
+          description: Failed to find database in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database in metadata database
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1844,27 +1697,21 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "502":
+          description: Connection to search service failed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "400":
           description: Failed to parse payload at search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Refreshed database tables metadata
           content:
@@ -1878,7 +1725,13 @@ paths:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
         "404":
-          description: Failed to fin user/database in metadata database
+          description: Failed to find database in metadata database
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -1898,9 +1751,15 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "404":
+          description: Database or user could not be found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: View of image was successful
           content:
@@ -1910,12 +1769,6 @@ paths:
                 items:
                   type: string
                   format: byte
-        "404":
-          description: Database or user could not be found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -1931,8 +1784,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -1940,129 +1793,45 @@ paths:
               $ref: "#/components/schemas/DatabaseModifyImageDto"
         required: true
       responses:
-        "403":
-          description: Modify of image is not permitted
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Database could not be found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "502":
           description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Modify of image was successful
+        "403":
+          description: Modify of image is not permitted
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/DatabaseBriefDto"
+                $ref: "#/components/schemas/ApiErrorDto"
         "410":
           description: File was not found in the Storage Service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-      security:
-      - bearerAuth: []
-      - basicAuth: []
-  /api/user:
-    get:
-      tags:
-      - user-endpoint
-      summary: List users
-      description: "Lists users known to the metadata database. Internal users are\
-        \ omitted from the result list. If the optional query parameter `username`\
-        \ is present, the result list can be filtered by matching this exact username."
-      operationId: findAll
-      parameters:
-      - name: username
-        in: query
-        required: false
-        schema:
-          type: string
-      responses:
-        "200":
-          description: List users
-          content:
-            application/json:
-              schema:
-                type: array
-                items:
-                  $ref: "#/components/schemas/UserBriefDto"
-    post:
-      tags:
-      - user-endpoint
-      summary: Create user
-      description: Creates a user in the auth service and metadata database. Requires
-        that no credentials are sent in the request.
-      operationId: create
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/CreateUserDto"
-        required: true
-      responses:
-        "201":
-          description: Created user
+        "202":
+          description: Modify of image was successful
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/UserDto"
+                $ref: "#/components/schemas/DatabaseBriefDto"
         "404":
-          description: Default role not found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Failed to create in auth service
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Internal authentication to the auth service is invalid
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "409":
-          description: User with username already exists
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Parameters are not well-formed (likely email)
-          content:
-            application/json: {}
-        "417":
-          description: User with e-mail already exists
+          description: Database could not be found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
         "503":
-          description: Failed to create in auth service
+          description: Failed to save in search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+      security:
+      - bearerAuth: []
+      - basicAuth: []
   /api/ontology:
     get:
       tags:
@@ -2084,7 +1853,7 @@ paths:
       - ontology-endpoint
       summary: Create ontology
       description: Creates an ontology in the metadata database. Requires role `create-ontology`.
-      operationId: create_1
+      operationId: create
       requestBody:
         content:
           application/json:
@@ -2132,7 +1901,7 @@ paths:
       - message-endpoint
       summary: Create message
       description: Creates a message in the metadata database. Requires role `create-maintenance-message`.
-      operationId: create_2
+      operationId: create_1
       requestBody:
         content:
           application/json:
@@ -2171,7 +1940,7 @@ paths:
       summary: Create image
       description: Creates a container image in the metadata database. Requires role
         `create-image`.
-      operationId: create_3
+      operationId: create_2
       requestBody:
         content:
           application/json:
@@ -2179,18 +1948,18 @@ paths:
               $ref: "#/components/schemas/ImageCreateDto"
         required: true
       responses:
-        "201":
-          description: Created image
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ImageDto"
         "409":
           description: Image already exists
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "201":
+          description: Created image
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ImageDto"
         "400":
           description: Image specification is invalid
           content:
@@ -2208,30 +1977,48 @@ paths:
       description: Lists all identifiers known to the metadata database
       operationId: findAll_4
       parameters:
+      - name: type
+        in: query
+        required: false
+        schema:
+          type: string
+          enum:
+          - database
+          - subset
+          - table
+          - view
+      - name: status
+        in: query
+        required: false
+        schema:
+          type: string
+          enum:
+          - draft
+          - published
       - name: dbid
         in: query
         required: false
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: qid
         in: query
         required: false
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: vid
         in: query
         required: false
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tid
         in: query
         required: false
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: Accept
         in: header
         required: true
@@ -2251,13 +2038,6 @@ paths:
                 type: array
                 items:
                   $ref: "#/components/schemas/LdDatasetDto"
-        "406":
-          description: "Identifier could not be exported, the requested style is not\
-            \ known"
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
     post:
       tags:
       - identifier-endpoint
@@ -2266,7 +2046,7 @@ paths:
         can only be created for objects the user has at least *READ* access in the
         associated database (requires role `create-identifier`) or for any object
         in any database (requires role `create-foreign-identifier`).
-      operationId: create_4
+      operationId: create_3
       requestBody:
         content:
           application/json:
@@ -2274,20 +2054,14 @@ paths:
               $ref: "#/components/schemas/CreateIdentifierDto"
         required: true
       responses:
-        "201":
-          description: Drafted identifier
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/IdentifierDto"
         "400":
           description: Identifier form contains invalid request data
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: "Failed to find database, table or view"
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
@@ -2298,14 +2072,20 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "201":
+          description: Drafted identifier
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/IdentifierDto"
+        "404":
+          description: "Failed to find database, table or view"
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
@@ -2325,9 +2105,15 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
+        "404":
+          description: Database or user could not be found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Find views successfully
           content:
@@ -2336,12 +2122,6 @@ paths:
                 type: array
                 items:
                   $ref: "#/components/schemas/ViewBriefDto"
-        "404":
-          description: Database or user could not be found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -2351,14 +2131,14 @@ paths:
       summary: Create view
       description: Creates a view. This can only be performed by the database owner.
         Requires role `create-database-view`.
-      operationId: create_6
+      operationId: create_5
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -2366,32 +2146,26 @@ paths:
               $ref: "#/components/schemas/CreateViewDto"
         required: true
       responses:
-        "201":
-          description: Create view successfully
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ViewBriefDto"
-        "423":
-          description: Create view resulted in an invalid query statement
+        "400":
+          description: Create view query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "201":
+          description: Create view successfully
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Create view query is malformed
+                $ref: "#/components/schemas/ViewBriefDto"
+        "404":
+          description: Failed to find database/user in metadata database.
           content:
             application/json:
               schema:
@@ -2402,8 +2176,20 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database/user in metadata database.
+        "423":
+          description: Create view resulted in an invalid query statement
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "503":
+          description: Failed to save in search service
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "409":
+          description: View exists with name
           content:
             application/json:
               schema:
@@ -2425,8 +2211,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
         "403":
           description: List tables not permitted
@@ -2434,12 +2220,6 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Database could not be found
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: List tables
           content:
@@ -2448,6 +2228,12 @@ paths:
                 type: array
                 items:
                   $ref: "#/components/schemas/TableBriefDto"
+        "404":
+          description: Database could not be found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -2456,14 +2242,14 @@ paths:
       - table-endpoint
       summary: Create table
       description: Creates a table in the database with id. Requires role `create-table`.
-      operationId: create_7
+      operationId: create_6
       parameters:
       - name: databaseId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       requestBody:
         content:
           application/json:
@@ -2471,26 +2257,20 @@ paths:
               $ref: "#/components/schemas/CreateTableDto"
         required: true
       responses:
-        "409":
-          description: Create table conflicts with existing table name
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "400":
           description: Create table query is malformed
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: "Database, container or user could not be found"
+        "409":
+          description: Create table conflicts with existing table name
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "503":
-          description: Failed to save in search service
+        "502":
+          description: Connection to search service failed
           content:
             application/json:
               schema:
@@ -2501,18 +2281,24 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to search service failed
+        "201":
+          description: Created a new table
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/TableBriefDto"
+        "503":
+          description: Failed to save in search service
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "201":
-          description: Created a new table
+        "404":
+          description: "Database, container or user could not be found"
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/TableBriefDto"
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -2544,7 +2330,7 @@ paths:
       - container-endpoint
       summary: Create container
       description: Creates a container in the metadata database. Requires role `create-container`.
-      operationId: create_9
+      operationId: create_8
       requestBody:
         content:
           application/json:
@@ -2552,12 +2338,6 @@ paths:
               $ref: "#/components/schemas/CreateContainerDto"
         required: true
       responses:
-        "409":
-          description: Container name already exists
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "403":
           description: "Create container not permitted, need authority `create-container`"
           content:
@@ -2570,8 +2350,8 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ContainerDto"
-        "400":
-          description: Container payload malformed
+        "409":
+          description: Container name already exists
           content:
             application/json:
               schema:
@@ -2582,9 +2362,39 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "400":
+          description: Container payload malformed
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
+  /api/user:
+    get:
+      tags:
+      - user-endpoint
+      summary: List users
+      description: "Lists users known to the metadata database. Internal users are\
+        \ omitted from the result list. If the optional query parameter `username`\
+        \ is present, the result list can be filtered by matching this exact username."
+      operationId: findAll
+      parameters:
+      - name: username
+        in: query
+        required: false
+        schema:
+          type: string
+      responses:
+        "200":
+          description: List users
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/UserBriefDto"
   /api/unit:
     get:
       tags:
@@ -2608,14 +2418,14 @@ paths:
       summary: Find entities
       description: Finds semantic entities by label or uri in an ontology with id.
         Requires role `execute-semantic-query`.
-      operationId: find_4
+      operationId: find_5
       parameters:
       - name: ontologyId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: label
         in: query
         required: false
@@ -2627,20 +2437,22 @@ paths:
         schema:
           type: string
       responses:
-        "422":
-          description: Ontology does not have rdf or sparql endpoint
+        "200":
+          description: Found entities
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
+                type: array
+                items:
+                  $ref: "#/components/schemas/EntityDto"
         "400":
           description: Filter params are invalid
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Could not find ontology
+        "422":
+          description: Ontology does not have rdf or sparql endpoint
           content:
             application/json:
               schema:
@@ -2651,14 +2463,12 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "200":
-          description: Found entities
+        "404":
+          description: Could not find ontology
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: "#/components/schemas/EntityDto"
+                $ref: "#/components/schemas/ApiErrorDto"
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -2687,27 +2497,27 @@ paths:
       - message-endpoint
       summary: Find message
       description: Finds a message with id in the metadata database.
-      operationId: find_5
+      operationId: find_6
       parameters:
       - name: messageId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "200":
-          description: Get messages
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/BannerMessageDto"
         "404":
           description: Could not find message
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "200":
+          description: Get messages
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BannerMessageDto"
   /api/license:
     get:
       tags:
@@ -2739,18 +2549,18 @@ paths:
         schema:
           type: string
       responses:
-        "404":
-          description: Failed to find metadata for identifier
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Retrieved metadata from identifier
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/IdentifierDto"
+        "404":
+          description: Failed to find metadata for identifier
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
   /api/database/{databaseId}:
     get:
       tags:
@@ -2763,21 +2573,9 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "404":
-          description: "Database, user or exchange could not be found"
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "403":
-          description: Not allowed to view database
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
         "200":
           description: Database found successfully
           headers:
@@ -2794,14 +2592,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/DatabaseBriefDto"
-        "503":
-          description: Failed to find queue information in broker service
+        "403":
+          description: Not allowed to view database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "502":
-          description: Connection to the broker service could not be established
+        "404":
+          description: Database could not be found
           content:
             application/json:
               schema:
@@ -2822,23 +2620,17 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "403":
-          description: Not the table owner.
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "422":
-          description: Ontology does not have rdf or sparql endpoint
+        "417":
+          description: Generated query is malformed
           content:
             application/json:
               schema:
@@ -2851,8 +2643,8 @@ paths:
                 type: array
                 items:
                   $ref: "#/components/schemas/EntityDto"
-        "417":
-          description: Generated query is malformed
+        "400":
+          description: Failed to parse statistic in search service
           content:
             application/json:
               schema:
@@ -2863,8 +2655,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "400":
-          description: Failed to parse statistic in search service
+        "422":
+          description: Ontology does not have rdf or sparql endpoint
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiErrorDto"
+        "403":
+          description: Not the table owner.
           content:
             application/json:
               schema:
@@ -2884,23 +2682,23 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: tableId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       - name: columnId
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "422":
-          description: Ontology does not have rdf or sparql endpoint
+        "400":
+          description: Generated query is malformed
           content:
             application/json:
               schema:
@@ -2913,14 +2711,14 @@ paths:
                 type: array
                 items:
                   $ref: "#/components/schemas/TableColumnEntityDto"
-        "400":
-          description: Generated query is malformed
+        "404":
+          description: Failed to find database/table in metadata database
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "404":
-          description: Failed to find database/table in metadata database
+        "422":
+          description: Ontology does not have rdf or sparql endpoint
           content:
             application/json:
               schema:
@@ -2940,21 +2738,21 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
-        "404":
-          description: Container image could not be found
+        "200":
+          description: Found container
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ApiErrorDto"
-        "200":
-          description: Found container
+                $ref: "#/components/schemas/ContainerDto"
+        "404":
+          description: Container image could not be found
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/ContainerDto"
+                $ref: "#/components/schemas/ApiErrorDto"
     delete:
       tags:
       - container-endpoint
@@ -2966,8 +2764,8 @@ paths:
         in: path
         required: true
         schema:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
       responses:
         "403":
           description: "Create container not permitted, need authority `delete-container`"
@@ -2975,14 +2773,14 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
+        "202":
+          description: Deleted container
         "404":
           description: Container not found
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiErrorDto"
-        "202":
-          description: Deleted container
       security:
       - bearerAuth: []
       - basicAuth: []
@@ -3004,6 +2802,145 @@ paths:
                   $ref: "#/components/schemas/ConceptDto"
 components:
   schemas:
+    ApiErrorDto:
+      required:
+      - code
+      - message
+      - status
+      type: object
+      properties:
+        status:
+          type: string
+          example: NOT_FOUND
+          enum:
+          - 100 CONTINUE
+          - 101 SWITCHING_PROTOCOLS
+          - 102 PROCESSING
+          - 103 EARLY_HINTS
+          - 103 CHECKPOINT
+          - 200 OK
+          - 201 CREATED
+          - 202 ACCEPTED
+          - 203 NON_AUTHORITATIVE_INFORMATION
+          - 204 NO_CONTENT
+          - 205 RESET_CONTENT
+          - 206 PARTIAL_CONTENT
+          - 207 MULTI_STATUS
+          - 208 ALREADY_REPORTED
+          - 226 IM_USED
+          - 300 MULTIPLE_CHOICES
+          - 301 MOVED_PERMANENTLY
+          - 302 FOUND
+          - 302 MOVED_TEMPORARILY
+          - 303 SEE_OTHER
+          - 304 NOT_MODIFIED
+          - 305 USE_PROXY
+          - 307 TEMPORARY_REDIRECT
+          - 308 PERMANENT_REDIRECT
+          - 400 BAD_REQUEST
+          - 401 UNAUTHORIZED
+          - 402 PAYMENT_REQUIRED
+          - 403 FORBIDDEN
+          - 404 NOT_FOUND
+          - 405 METHOD_NOT_ALLOWED
+          - 406 NOT_ACCEPTABLE
+          - 407 PROXY_AUTHENTICATION_REQUIRED
+          - 408 REQUEST_TIMEOUT
+          - 409 CONFLICT
+          - 410 GONE
+          - 411 LENGTH_REQUIRED
+          - 412 PRECONDITION_FAILED
+          - 413 PAYLOAD_TOO_LARGE
+          - 413 REQUEST_ENTITY_TOO_LARGE
+          - 414 URI_TOO_LONG
+          - 414 REQUEST_URI_TOO_LONG
+          - 415 UNSUPPORTED_MEDIA_TYPE
+          - 416 REQUESTED_RANGE_NOT_SATISFIABLE
+          - 417 EXPECTATION_FAILED
+          - 418 I_AM_A_TEAPOT
+          - 419 INSUFFICIENT_SPACE_ON_RESOURCE
+          - 420 METHOD_FAILURE
+          - 421 DESTINATION_LOCKED
+          - 422 UNPROCESSABLE_ENTITY
+          - 423 LOCKED
+          - 424 FAILED_DEPENDENCY
+          - 425 TOO_EARLY
+          - 426 UPGRADE_REQUIRED
+          - 428 PRECONDITION_REQUIRED
+          - 429 TOO_MANY_REQUESTS
+          - 431 REQUEST_HEADER_FIELDS_TOO_LARGE
+          - 451 UNAVAILABLE_FOR_LEGAL_REASONS
+          - 500 INTERNAL_SERVER_ERROR
+          - 501 NOT_IMPLEMENTED
+          - 502 BAD_GATEWAY
+          - 503 SERVICE_UNAVAILABLE
+          - 504 GATEWAY_TIMEOUT
+          - 505 HTTP_VERSION_NOT_SUPPORTED
+          - 506 VARIANT_ALSO_NEGOTIATES
+          - 507 INSUFFICIENT_STORAGE
+          - 508 LOOP_DETECTED
+          - 509 BANDWIDTH_LIMIT_EXCEEDED
+          - 510 NOT_EXTENDED
+          - 511 NETWORK_AUTHENTICATION_REQUIRED
+        message:
+          type: string
+          example: Error message
+        code:
+          type: string
+          example: error.service.code
+    UserAttributesDto:
+      required:
+      - language
+      - theme
+      type: object
+      properties:
+        theme:
+          type: string
+          example: light
+        orcid:
+          type: string
+          example: https://orcid.org/0000-0002-1825-0097
+        affiliation:
+          type: string
+          example: Brown University
+        language:
+          type: string
+          example: en
+    UserDto:
+      required:
+      - attributes
+      - id
+      - password
+      - username
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
+        name:
+          type: string
+          example: Josiah Carberry
+        username:
+          type: string
+          example: username
+        password:
+          type: string
+          example: p4ssw0rd
+        attributes:
+          $ref: "#/components/schemas/UserAttributesDto"
+        last_retrieved:
+          type: string
+          format: date-time
+        qualified_name:
+          type: string
+          example: Josiah Carberry — @jcarberry
+        given_name:
+          type: string
+          example: Josiah
+        family_name:
+          type: string
+          example: Carberry
     CreatorBriefDto:
       required:
       - creator_name
@@ -3011,9 +2948,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 11
+          type: string
+          format: uuid
+          example: e41f94a6-2b94-4a12-ac0e-678684e1c070
         affiliation:
           type: string
           example: Brown University
@@ -3060,9 +2997,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         name:
           type: string
           example: Air Quality
@@ -3094,6 +3031,7 @@ components:
       required:
       - creators
       - database_id
+      - descriptions
       - id
       - owned_by
       - publication_year
@@ -3104,9 +3042,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: b97cd56b-66ca-4354-9e6c-f47210cfaaec
         type:
           type: string
           example: database
@@ -3123,6 +3061,10 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/IdentifierTitleDto"
+        descriptions:
+          type: array
+          items:
+            $ref: "#/components/schemas/IdentifierDescriptionDto"
         doi:
           type: string
           example: 10.1038/nphys1170
@@ -3136,21 +3078,18 @@ components:
           - draft
           - published
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         query_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         publication_year:
           type: integer
           format: int32
@@ -3159,18 +3098,18 @@ components:
           type: string
           format: uuid
           example: 2f45ef7a-7f9b-4667-9156-152c87fe1ca5
-    IdentifierTitleDto:
+    IdentifierDescriptionDto:
       required:
       - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
-        title:
           type: string
-          example: Airquality Demonstrator
+          format: uuid
+          example: e0e9692c-910b-4b60-b53a-fc7c358a917d
+        description:
+          type: string
+          example: "Air quality reports at Stephansplatz, Vienna"
         language:
           type: string
           example: en
@@ -3361,570 +3300,29 @@ components:
           - zu
         type:
           type: string
+          example: Abstract
           enum:
-          - AlternativeTitle
-          - Subtitle
-          - TranslatedTitle
+          - Abstract
+          - Methods
+          - SeriesInformation
+          - TableOfContents
+          - TechnicalInfo
           - Other
-    UserBriefDto:
+    IdentifierTitleDto:
       required:
       - id
-      - username
       type: object
       properties:
         id:
           type: string
           format: uuid
-          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
-        username:
-          type: string
-          description: Only contains lowercase characters
-          example: jcarberry
-        name:
-          type: string
-          example: Josiah Carberry
-        orcid:
-          type: string
-          example: 0000-0002-1825-0097
-        qualified_name:
-          type: string
-          example: Josiah Carberry — @jcarberry
-        given_name:
-          type: string
-          example: Josiah
-        family_name:
+          example: 70ce5164-fd74-413f-8712-f996b91defbf
+        title:
           type: string
-          example: Carberry
-    DatabaseAccessDto:
-      required:
-      - type
-      - user
-      type: object
-      properties:
-        user:
-          $ref: "#/components/schemas/UserBriefDto"
-        type:
-          type: string
-          example: read
-          enum:
-          - read
-          - write_own
-          - write_all
-    ApiErrorDto:
-      required:
-      - code
-      - message
-      - status
-      type: object
-      properties:
-        status:
-          type: string
-          example: NOT_FOUND
-          enum:
-          - 100 CONTINUE
-          - 101 SWITCHING_PROTOCOLS
-          - 102 PROCESSING
-          - 103 EARLY_HINTS
-          - 103 CHECKPOINT
-          - 200 OK
-          - 201 CREATED
-          - 202 ACCEPTED
-          - 203 NON_AUTHORITATIVE_INFORMATION
-          - 204 NO_CONTENT
-          - 205 RESET_CONTENT
-          - 206 PARTIAL_CONTENT
-          - 207 MULTI_STATUS
-          - 208 ALREADY_REPORTED
-          - 226 IM_USED
-          - 300 MULTIPLE_CHOICES
-          - 301 MOVED_PERMANENTLY
-          - 302 FOUND
-          - 302 MOVED_TEMPORARILY
-          - 303 SEE_OTHER
-          - 304 NOT_MODIFIED
-          - 305 USE_PROXY
-          - 307 TEMPORARY_REDIRECT
-          - 308 PERMANENT_REDIRECT
-          - 400 BAD_REQUEST
-          - 401 UNAUTHORIZED
-          - 402 PAYMENT_REQUIRED
-          - 403 FORBIDDEN
-          - 404 NOT_FOUND
-          - 405 METHOD_NOT_ALLOWED
-          - 406 NOT_ACCEPTABLE
-          - 407 PROXY_AUTHENTICATION_REQUIRED
-          - 408 REQUEST_TIMEOUT
-          - 409 CONFLICT
-          - 410 GONE
-          - 411 LENGTH_REQUIRED
-          - 412 PRECONDITION_FAILED
-          - 413 PAYLOAD_TOO_LARGE
-          - 413 REQUEST_ENTITY_TOO_LARGE
-          - 414 URI_TOO_LONG
-          - 414 REQUEST_URI_TOO_LONG
-          - 415 UNSUPPORTED_MEDIA_TYPE
-          - 416 REQUESTED_RANGE_NOT_SATISFIABLE
-          - 417 EXPECTATION_FAILED
-          - 418 I_AM_A_TEAPOT
-          - 419 INSUFFICIENT_SPACE_ON_RESOURCE
-          - 420 METHOD_FAILURE
-          - 421 DESTINATION_LOCKED
-          - 422 UNPROCESSABLE_ENTITY
-          - 423 LOCKED
-          - 424 FAILED_DEPENDENCY
-          - 425 TOO_EARLY
-          - 426 UPGRADE_REQUIRED
-          - 428 PRECONDITION_REQUIRED
-          - 429 TOO_MANY_REQUESTS
-          - 431 REQUEST_HEADER_FIELDS_TOO_LARGE
-          - 451 UNAVAILABLE_FOR_LEGAL_REASONS
-          - 500 INTERNAL_SERVER_ERROR
-          - 501 NOT_IMPLEMENTED
-          - 502 BAD_GATEWAY
-          - 503 SERVICE_UNAVAILABLE
-          - 504 GATEWAY_TIMEOUT
-          - 505 HTTP_VERSION_NOT_SUPPORTED
-          - 506 VARIANT_ALSO_NEGOTIATES
-          - 507 INSUFFICIENT_STORAGE
-          - 508 LOOP_DETECTED
-          - 509 BANDWIDTH_LIMIT_EXCEEDED
-          - 510 NOT_EXTENDED
-          - 511 NETWORK_AUTHENTICATION_REQUIRED
-        message:
-          type: string
-          example: Error message
-        code:
-          type: string
-          example: error.service.code
-    UserUpdateDto:
-      required:
-      - language
-      - theme
-      type: object
-      properties:
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
-          type: string
-          example: Brown University
-        orcid:
-          type: string
-          example: 0000-0002-1825-0097
-        theme:
-          type: string
-          example: dark
-        language:
-          type: string
-          example: en
-    UserAttributesDto:
-      required:
-      - language
-      - theme
-      type: object
-      properties:
-        theme:
-          type: string
-          example: light
-        orcid:
-          type: string
-          example: https://orcid.org/0000-0002-1825-0097
-        affiliation:
-          type: string
-          example: Brown University
-        language:
-          type: string
-          example: en
-    UserDto:
-      required:
-      - attributes
-      - id
-      - password
-      - username
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
-        name:
-          type: string
-          example: Josiah Carberry
-        username:
-          type: string
-          example: username
-        password:
-          type: string
-          example: p4ssw0rd
-        attributes:
-          $ref: "#/components/schemas/UserAttributesDto"
-        last_retrieved:
-          type: string
-          format: date-time
-        qualified_name:
-          type: string
-          example: Josiah Carberry — @jcarberry
-        given_name:
-          type: string
-          example: Josiah
-        family_name:
-          type: string
-          example: Carberry
-    UserPasswordDto:
-      required:
-      - password
-      type: object
-      properties:
-        password:
-          type: string
-    RefreshTokenRequestDto:
-      required:
-      - refresh_token
-      type: object
-      properties:
-        refresh_token:
-          type: string
-          example: refresh_token
-    TokenDto:
-      required:
-      - access_token
-      - expires_in
-      - id_token
-      - not-before-policy
-      - refresh_expires_in
-      - refresh_token
-      - scope
-      - session_state
-      - token_type
-      type: object
-      properties:
-        scope:
-          type: string
-        access_token:
-          type: string
-        expires_in:
-          type: integer
-          format: int64
-        refresh_token:
-          type: string
-        refresh_expires_in:
-          type: integer
-          format: int64
-        id_token:
-          type: string
-        session_state:
-          type: string
-        token_type:
-          type: string
-        not-before-policy:
-          type: integer
-          format: int64
-    OntologyModifyDto:
-      required:
-      - prefix
-      - uri
-      type: object
-      properties:
-        uri:
-          type: string
-          example: Ontology URI
-        prefix:
-          type: string
-          example: Ontology prefix
-        sparql_endpoint:
-          type: string
-          example: Ontology SPARQL endpoint
-        rdf_path:
-          type: string
-          example: rdf/om-2.0.rdf
-    OntologyDto:
-      required:
-      - id
-      - prefix
-      - rdf
-      - sparql
-      - uri
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-        uri:
-          type: string
-          example: http://www.wikidata.org/
-        prefix:
-          type: string
-          example: wd
-        sparql:
-          type: boolean
-          example: true
-        rdf:
-          type: boolean
-          example: false
-        uri_pattern:
-          type: string
-          example: http://www.wikidata.org/entity/.*
-        sparql_endpoint:
-          type: string
-          example: https://query.wikidata.org/sparql
-        rdf_path:
-          type: string
-          example: rdf/om-2.0.rdf
-    BannerMessageUpdateDto:
-      required:
-      - message
-      - type
-      type: object
-      properties:
-        type:
-          type: string
-          enum:
-          - error
-          - warning
-          - info
-        message:
-          type: string
-          example: Maintenance starts on 8am on Monday
-        link:
-          type: string
-          example: https://example.com
-        link_text:
-          type: string
-          example: More
-        display_start:
-          type: string
-          format: date-time
-          example: 2021-03-12T15:26:21Z
-        display_end:
-          type: string
-          format: date-time
-          example: 2021-03-12T15:26:21Z
-    BannerMessageBriefDto:
-      required:
-      - message
-      - type
-      type: object
-      properties:
-        type:
-          type: string
-          enum:
-          - error
-          - warning
-          - info
-        message:
-          type: string
-          example: Maintenance starts on 8am on Monday
-        link:
-          type: string
-          example: https://example.com
-        link_text:
-          type: string
-          example: More
-    ImageChangeDto:
-      required:
-      - dialect
-      - driver_class
-      - jdbc_method
-      - registry
-      type: object
-      properties:
-        registry:
-          type: string
-          example: docker.io/library
-        defaultPort:
-          maximum: 65535
-          minimum: 1024
-          type: integer
-          format: int32
-          example: 5432
-        dialect:
-          type: string
-          example: Postgres
-        driver_class:
-          type: string
-          example: org.postgresql.Driver
-        jdbc_method:
-          type: string
-          example: postgresql
-    DataTypeDto:
-      required:
-      - display_name
-      - documentation
-      - is_buildable
-      - is_quoted
-      - value
-      type: object
-      properties:
-        value:
-          type: string
-          example: time
-        documentation:
-          type: string
-          example: https://mariadb.com/kb/en/time/
-        display_name:
-          type: string
-          example: TIME(fsp)
-        size_min:
-          type: integer
-          format: int32
-          example: 0
-        size_max:
-          type: integer
-          format: int32
-          example: 6
-        size_default:
-          type: integer
-          format: int32
-          example: 0
-        size_required:
-          type: boolean
-          example: false
-        d_min:
-          type: integer
-          format: int32
-        d_max:
-          type: integer
-          format: int32
-        d_default:
-          type: integer
-          format: int32
-        d_required:
-          type: boolean
-        data_hint:
-          type: string
-          example: "e.g. HH:MM:SS, HH:MM, HHMMSS, H:M:S"
-        type_hint:
-          type: string
-          example: "fsp=microsecond precision, min. 0, max. 6"
-        is_quoted:
-          type: boolean
-          description: frontend needs to quote this data type
-          example: false
-        is_buildable:
-          type: boolean
-          description: frontend can build this data type
-          example: true
-    ImageDto:
-      required:
-      - data_types
-      - default
-      - default_port
-      - dialect
-      - driver_class
-      - id
-      - jdbc_method
-      - name
-      - operators
-      - registry
-      - version
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
-        registry:
-          type: string
-          example: docker.io/library
-        name:
-          type: string
-          example: mariadb
-        version:
-          type: string
-          example: "10.5"
-        dialect:
-          type: string
-          example: org.hibernate.dialect.MariaDBDialect
-        operators:
-          type: array
-          items:
-            $ref: "#/components/schemas/OperatorDto"
-        driver_class:
-          type: string
-          example: org.mariadb.jdbc.Driver
-        jdbc_method:
-          type: string
-          example: mariadb
-        default:
-          type: boolean
-          example: false
-        default_port:
-          type: integer
-          format: int32
-          example: 3306
-        data_types:
-          type: array
-          items:
-            $ref: "#/components/schemas/DataTypeDto"
-    OperatorDto:
-      required:
-      - display_name
-      - documentation
-      - value
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-        value:
-          type: string
-          example: XOR
-        documentation:
-          type: string
-          example: https://mariadb.com/kb/en/xor/
-        display_name:
-          type: string
-          example: XOR
-    IdentifierSaveDto:
-      required:
-      - creators
-      - database_id
-      - id
-      - publication_year
-      - publisher
-      - titles
-      - type
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
-        type:
-          type: string
-          example: database
-          enum:
-          - database
-          - subset
-          - table
-          - view
-        doi:
-          type: string
-          example: 10.1111/11111111
-        titles:
-          type: array
-          items:
-            $ref: "#/components/schemas/SaveIdentifierTitleDto"
-        descriptions:
-          type: array
-          items:
-            $ref: "#/components/schemas/SaveIdentifierDescriptionDto"
-        funders:
-          type: array
-          items:
-            $ref: "#/components/schemas/SaveIdentifierFunderDto"
-        licenses:
-          type: array
-          items:
-            $ref: "#/components/schemas/LicenseDto"
-        publisher:
-          type: string
-          example: TU Wien
-        language:
+          example: Airquality Demonstrator
+        language:
           type: string
+          example: en
           enum:
           - ab
           - aa
@@ -4110,122 +3508,371 @@ components:
           - yo
           - za
           - zu
-        creators:
-          type: array
-          items:
-            $ref: "#/components/schemas/SaveIdentifierCreatorDto"
-        database_id:
+        type:
+          type: string
+          enum:
+          - AlternativeTitle
+          - Subtitle
+          - TranslatedTitle
+          - Other
+    UserBriefDto:
+      required:
+      - id
+      - username
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
+        username:
+          type: string
+          description: Only contains lowercase characters
+          example: jcarberry
+        name:
+          type: string
+          example: Josiah Carberry
+        orcid:
+          type: string
+          example: 0000-0002-1825-0097
+        qualified_name:
+          type: string
+          example: Josiah Carberry — @jcarberry
+        given_name:
+          type: string
+          example: Josiah
+        family_name:
+          type: string
+          example: Carberry
+    DatabaseAccessDto:
+      required:
+      - type
+      - user
+      type: object
+      properties:
+        user:
+          $ref: "#/components/schemas/UserBriefDto"
+        type:
+          type: string
+          example: read
+          enum:
+          - read
+          - write_own
+          - write_all
+    UserUpdateDto:
+      required:
+      - language
+      - theme
+      type: object
+      properties:
+        firstname:
+          type: string
+          example: Josiah
+        lastname:
+          type: string
+          example: Carberry
+        affiliation:
+          type: string
+          example: Brown University
+        orcid:
+          type: string
+          example: 0000-0002-1825-0097
+        theme:
+          type: string
+          example: dark
+        language:
+          type: string
+          example: en
+    OntologyModifyDto:
+      required:
+      - prefix
+      - uri
+      type: object
+      properties:
+        uri:
+          type: string
+          example: Ontology URI
+        prefix:
+          type: string
+          example: Ontology prefix
+        sparql_endpoint:
+          type: string
+          example: Ontology SPARQL endpoint
+        rdf_path:
+          type: string
+          example: rdf/om-2.0.rdf
+    OntologyDto:
+      required:
+      - id
+      - prefix
+      - rdf
+      - sparql
+      - uri
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 7c491e40-082a-47b8-b82c-51d03c520466
+        uri:
+          type: string
+          example: http://www.wikidata.org/
+        prefix:
+          type: string
+          example: wd
+        sparql:
+          type: boolean
+          example: true
+        rdf:
+          type: boolean
+          example: false
+        uri_pattern:
+          type: string
+          example: http://www.wikidata.org/entity/.*
+        sparql_endpoint:
+          type: string
+          example: https://query.wikidata.org/sparql
+        rdf_path:
+          type: string
+          example: rdf/om-2.0.rdf
+    BannerMessageUpdateDto:
+      required:
+      - message
+      - type
+      type: object
+      properties:
+        type:
+          type: string
+          enum:
+          - error
+          - warning
+          - info
+        message:
+          type: string
+          example: Maintenance starts on 8am on Monday
+        link:
+          type: string
+          example: https://example.com
+        link_text:
+          type: string
+          example: More
+        display_start:
+          type: string
+          format: date-time
+          example: 2021-03-12T15:26:21Z
+        display_end:
+          type: string
+          format: date-time
+          example: 2021-03-12T15:26:21Z
+    BannerMessageBriefDto:
+      required:
+      - message
+      - type
+      type: object
+      properties:
+        type:
+          type: string
+          enum:
+          - error
+          - warning
+          - info
+        message:
+          type: string
+          example: Maintenance starts on 8am on Monday
+        link:
+          type: string
+          example: https://example.com
+        link_text:
+          type: string
+          example: More
+    ImageChangeDto:
+      required:
+      - dialect
+      - driver_class
+      - jdbc_method
+      - registry
+      type: object
+      properties:
+        registry:
+          type: string
+          example: docker.io/library
+        defaultPort:
+          maximum: 65535
+          minimum: 1024
           type: integer
-          format: int64
-          example: 1
-        query_id:
+          format: int32
+          example: 5432
+        dialect:
+          type: string
+          example: Postgres
+        driver_class:
+          type: string
+          example: org.postgresql.Driver
+        jdbc_method:
+          type: string
+          example: postgresql
+    DataTypeDto:
+      required:
+      - display_name
+      - documentation
+      - id
+      - is_buildable
+      - is_quoted
+      - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcca
+        value:
+          type: string
+          example: time
+        documentation:
+          type: string
+          example: https://mariadb.com/kb/en/time/
+        display_name:
+          type: string
+          example: TIME(fsp)
+        size_min:
           type: integer
-          format: int64
-        view_id:
+          format: int32
+          example: 0
+        size_max:
           type: integer
-          format: int64
-        table_id:
+          format: int32
+          example: 6
+        size_default:
           type: integer
-          format: int64
-        publication_day:
+          format: int32
+          example: 0
+        size_required:
+          type: boolean
+          example: false
+        d_min:
           type: integer
           format: int32
-          example: 15
-        publication_month:
+        d_max:
           type: integer
           format: int32
-          example: 12
-        publication_year:
+        d_default:
           type: integer
           format: int32
-          example: 2022
-        related_identifiers:
-          type: array
-          items:
-            $ref: "#/components/schemas/SaveRelatedIdentifierDto"
-    LicenseDto:
+        d_required:
+          type: boolean
+        data_hint:
+          type: string
+          example: "e.g. HH:MM:SS, HH:MM, HHMMSS, H:M:S"
+        type_hint:
+          type: string
+          example: "fsp=microsecond precision, min. 0, max. 6"
+        is_quoted:
+          type: boolean
+          description: frontend needs to quote this data type
+          example: false
+        is_buildable:
+          type: boolean
+          description: frontend can build this data type
+          example: true
+    ImageDto:
       required:
-      - identifier
-      - uri
+      - data_types
+      - default
+      - id
+      - name
+      - operators
+      - version
       type: object
       properties:
-        identifier:
+        id:
           type: string
-          example: MIT
-        uri:
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcce
+        name:
           type: string
-          example: https://opensource.org/licenses/MIT
-        description:
+          example: mariadb
+        version:
           type: string
-          example: "A short and simple permissive license with conditions only requiring\
-            \ preservation of copyright and license notices. Licensed works, modifications,\
-            \ and larger works may be distributed under different terms and without\
-            \ source code."
-    SaveIdentifierCreatorDto:
+          example: "10.5"
+        operators:
+          type: array
+          items:
+            $ref: "#/components/schemas/OperatorDto"
+        default:
+          type: boolean
+          example: false
+        data_types:
+          type: array
+          items:
+            $ref: "#/components/schemas/DataTypeDto"
+    OperatorDto:
       required:
-      - creator_name
+      - display_name
+      - documentation
       - id
+      - value
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
-          type: string
-          example: Wesleyan University
-        creator_name:
-          type: string
-          example: "Carberry, Josiah"
-        name_type:
-          type: string
-          example: Personal
-          enum:
-          - Personal
-          - Organizational
-        name_identifier:
           type: string
-          example: 0000-0002-1825-0097
-        name_identifier_scheme:
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dccf
+        value:
           type: string
-          example: ORCID
-          enum:
-          - ORCID
-          - ROR
-          - ISNI
-          - GRID
-        affiliation_identifier:
+          example: XOR
+        documentation:
           type: string
-          example: https://ror.org/04d836q62
-        affiliation_identifier_scheme:
+          example: https://mariadb.com/kb/en/xor/
+        display_name:
           type: string
-          example: ROR
-          enum:
-          - ROR
-          - GRID
-          - ISNI
-    SaveIdentifierDescriptionDto:
+          example: XOR
+    IdentifierSaveDto:
       required:
-      - description
+      - creators
+      - database_id
       - id
+      - publication_year
+      - publisher
+      - titles
+      - type
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        description:
           type: string
-          example: "Air quality reports at Stephansplatz, Vienna"
+          format: uuid
+          example: 68e11675-1e0f-4d24-a6d9-887ad1c4445d
+        type:
+          type: string
+          example: database
+          enum:
+          - database
+          - subset
+          - table
+          - view
+        doi:
+          type: string
+          example: 10.1111/11111111
+        titles:
+          type: array
+          items:
+            $ref: "#/components/schemas/SaveIdentifierTitleDto"
+        descriptions:
+          type: array
+          items:
+            $ref: "#/components/schemas/SaveIdentifierDescriptionDto"
+        funders:
+          type: array
+          items:
+            $ref: "#/components/schemas/SaveIdentifierFunderDto"
+        licenses:
+          type: array
+          items:
+            $ref: "#/components/schemas/LicenseDto"
+        publisher:
+          type: string
+          example: TU Wien
         language:
           type: string
-          example: en
           enum:
           - ab
           - aa
@@ -4411,63 +4058,118 @@ components:
           - yo
           - za
           - zu
-        type:
+        creators:
+          type: array
+          items:
+            $ref: "#/components/schemas/SaveIdentifierCreatorDto"
+        database_id:
+          type: string
+          format: uuid
+        query_id:
+          type: string
+          format: uuid
+        view_id:
+          type: string
+          format: uuid
+        table_id:
+          type: string
+          format: uuid
+        publication_day:
+          type: integer
+          format: int32
+          example: 15
+        publication_month:
+          type: integer
+          format: int32
+          example: 12
+        publication_year:
+          type: integer
+          format: int32
+          example: 2022
+        related_identifiers:
+          type: array
+          items:
+            $ref: "#/components/schemas/SaveRelatedIdentifierDto"
+    LicenseDto:
+      required:
+      - identifier
+      - uri
+      type: object
+      properties:
+        identifier:
           type: string
-          example: Abstract
-          enum:
-          - Abstract
-          - Methods
-          - SeriesInformation
-          - TableOfContents
-          - TechnicalInfo
-          - Other
-    SaveIdentifierFunderDto:
+          example: MIT
+        uri:
+          type: string
+          example: https://opensource.org/licenses/MIT
+        description:
+          type: string
+          example: "A short and simple permissive license with conditions only requiring\
+            \ preservation of copyright and license notices. Licensed works, modifications,\
+            \ and larger works may be distributed under different terms and without\
+            \ source code."
+    SaveIdentifierCreatorDto:
       required:
-      - funder_name
+      - creator_name
       - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        funder_name:
           type: string
-          example: European Commission
-        funder_identifier:
+          format: uuid
+          example: da9dd034-00a8-4517-b93d-d1b2adfee418
+        firstname:
           type: string
-          example: http://doi.org/10.13039/501100000780
-        funder_identifier_type:
+          example: Josiah
+        lastname:
           type: string
-          example: Crossref Funder ID
+          example: Carberry
+        affiliation:
+          type: string
+          example: Wesleyan University
+        creator_name:
+          type: string
+          example: "Carberry, Josiah"
+        name_type:
+          type: string
+          example: Personal
           enum:
-          - Crossref Funder ID
+          - Personal
+          - Organizational
+        name_identifier:
+          type: string
+          example: 0000-0002-1825-0097
+        name_identifier_scheme:
+          type: string
+          example: ORCID
+          enum:
+          - ORCID
           - ROR
-          - GND
           - ISNI
-          - Other
-        scheme_uri:
-          type: string
-          example: http://doi.org/
-        award_number:
+          - GRID
+        affiliation_identifier:
           type: string
-          example: "824087"
-        award_title:
+          example: https://ror.org/04d836q62
+        affiliation_identifier_scheme:
           type: string
-          example: EOSC-Life
-    SaveIdentifierTitleDto:
+          example: ROR
+          enum:
+          - ROR
+          - GRID
+          - ISNI
+    SaveIdentifierDescriptionDto:
       required:
+      - description
       - id
-      - title
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        title:
           type: string
-          example: Airquality Demonstrator
+          format: uuid
+          example: 35bd84d8-b181-43c8-b786-4d024e4f843c
+        description:
+          type: string
+          example: "Air quality reports at Stephansplatz, Vienna"
         language:
           type: string
           example: en
@@ -4658,154 +4360,61 @@ components:
           - zu
         type:
           type: string
-          example: Subtitle
+          example: Abstract
           enum:
-          - AlternativeTitle
-          - Subtitle
-          - TranslatedTitle
+          - Abstract
+          - Methods
+          - SeriesInformation
+          - TableOfContents
+          - TechnicalInfo
           - Other
-    SaveRelatedIdentifierDto:
-      required:
-      - id
-      - relation
-      - type
-      - value
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
-        value:
-          type: string
-          example: 10.70124/dc4zh-9ce78
-        type:
-          type: string
-          example: DOI
-          enum:
-          - DOI
-          - URL
-          - URN
-          - ARK
-          - arXiv
-          - bibcode
-          - EAN13
-          - EISSN
-          - Handle
-          - IGSN
-          - ISBN
-          - ISTC
-          - LISSN
-          - LSID
-          - PMID
-          - PURL
-          - UPC
-          - w3id
-        relation:
-          type: string
-          example: Cites
-          enum:
-          - IsCitedBy
-          - Cites
-          - IsSupplementTo
-          - IsSupplementedBy
-          - IsContinuedBy
-          - Continues
-          - IsDescribedBy
-          - Describes
-          - HasMetadata
-          - IsMetadataFor
-          - HasVersion
-          - IsVersionOf
-          - IsNewVersionOf
-          - IsPreviousVersionOf
-          - IsPartOf
-          - HasPart
-          - IsPublishedIn
-          - IsReferencedBy
-          - References
-          - IsDocumentedBy
-          - Documents
-          - IsCompiledBy
-          - Compiles
-          - IsVariantFormOf
-          - IsOriginalFormOf
-          - IsIdenticalTo
-          - IsReviewedBy
-          - Reviews
-          - IsDerivedFrom
-          - IsSourceOf
-          - IsRequiredBy
-          - Requires
-          - IsObsoletedBy
-          - Obsoletes
-    CreatorDto:
+    SaveIdentifierFunderDto:
       required:
-      - creator_name
+      - funder_name
       - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 11
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
           type: string
-          example: Brown University
-        creator_name:
-          type: string
-          example: "Carberry, Josiah"
-        name_type:
+          format: uuid
+          example: 1c6b9212-a315-44b9-946c-3682a7a0e517
+        funder_name:
           type: string
-          example: Personal
-          enum:
-          - Personal
-          - Organizational
-        name_identifier:
+          example: European Commission
+        funder_identifier:
           type: string
-          example: 0000-0002-1825-0097
-        name_identifier_scheme:
+          example: http://doi.org/10.13039/501100000780
+        funder_identifier_type:
           type: string
-          example: ORCID
+          example: Crossref Funder ID
           enum:
-          - ORCID
+          - Crossref Funder ID
           - ROR
+          - GND
           - ISNI
-          - GRID
-        name_identifier_scheme_uri:
-          type: string
-          example: https://orcid.org/
-        affiliation_identifier:
+          - Other
+        scheme_uri:
           type: string
-          example: https://ror.org/05gq02987
-        affiliation_identifier_scheme:
+          example: http://doi.org/
+        award_number:
           type: string
-          example: ROR
-          enum:
-          - ROR
-          - GRID
-          - ISNI
-        affiliation_identifier_scheme_uri:
+          example: "824087"
+        award_title:
           type: string
-          example: https://ror.org/
-    IdentifierDescriptionDto:
+          example: EOSC-Life
+    SaveIdentifierTitleDto:
       required:
       - id
+      - title
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
-        description:
           type: string
-          example: "Air quality reports at Stephansplatz, Vienna"
+          format: uuid
+          example: 2af9f40e-eaf5-4ea1-861a-1a696587bf29
+        title:
+          type: string
+          example: Airquality Demonstrator
         language:
           type: string
           example: en
@@ -4996,14 +4605,142 @@ components:
           - zu
         type:
           type: string
-          example: Abstract
+          example: Subtitle
+          enum:
+          - AlternativeTitle
+          - Subtitle
+          - TranslatedTitle
+          - Other
+    SaveRelatedIdentifierDto:
+      required:
+      - id
+      - relation
+      - type
+      - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 5bb272c7-7421-4f74-83ac-0486812d0f44
+        value:
+          type: string
+          example: 10.70124/dc4zh-9ce78
+        type:
+          type: string
+          example: DOI
           enum:
-          - Abstract
-          - Methods
-          - SeriesInformation
-          - TableOfContents
-          - TechnicalInfo
-          - Other
+          - DOI
+          - URL
+          - URN
+          - ARK
+          - arXiv
+          - bibcode
+          - EAN13
+          - EISSN
+          - Handle
+          - IGSN
+          - ISBN
+          - ISTC
+          - LISSN
+          - LSID
+          - PMID
+          - PURL
+          - UPC
+          - w3id
+        relation:
+          type: string
+          example: Cites
+          enum:
+          - IsCitedBy
+          - Cites
+          - IsSupplementTo
+          - IsSupplementedBy
+          - IsContinuedBy
+          - Continues
+          - IsDescribedBy
+          - Describes
+          - HasMetadata
+          - IsMetadataFor
+          - HasVersion
+          - IsVersionOf
+          - IsNewVersionOf
+          - IsPreviousVersionOf
+          - IsPartOf
+          - HasPart
+          - IsPublishedIn
+          - IsReferencedBy
+          - References
+          - IsDocumentedBy
+          - Documents
+          - IsCompiledBy
+          - Compiles
+          - IsVariantFormOf
+          - IsOriginalFormOf
+          - IsIdenticalTo
+          - IsReviewedBy
+          - Reviews
+          - IsDerivedFrom
+          - IsSourceOf
+          - IsRequiredBy
+          - Requires
+          - IsObsoletedBy
+          - Obsoletes
+    CreatorDto:
+      required:
+      - creator_name
+      - id
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: e41f94a6-2b94-4a12-ac0e-678684e1c070
+        firstname:
+          type: string
+          example: Josiah
+        lastname:
+          type: string
+          example: Carberry
+        affiliation:
+          type: string
+          example: Brown University
+        creator_name:
+          type: string
+          example: "Carberry, Josiah"
+        name_type:
+          type: string
+          example: Personal
+          enum:
+          - Personal
+          - Organizational
+        name_identifier:
+          type: string
+          example: 0000-0002-1825-0097
+        name_identifier_scheme:
+          type: string
+          example: ORCID
+          enum:
+          - ORCID
+          - ROR
+          - ISNI
+          - GRID
+        name_identifier_scheme_uri:
+          type: string
+          example: https://orcid.org/
+        affiliation_identifier:
+          type: string
+          example: https://ror.org/05gq02987
+        affiliation_identifier_scheme:
+          type: string
+          example: ROR
+          enum:
+          - ROR
+          - GRID
+          - ISNI
+        affiliation_identifier_scheme_uri:
+          type: string
+          example: https://ror.org/
     IdentifierDto:
       required:
       - creators
@@ -5025,9 +4762,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: b97cd56b-66ca-4354-9e6c-f47210cfaaec
         type:
           type: string
           example: database
@@ -5266,21 +5003,17 @@ components:
           - draft
           - published
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         query_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         query_normalized:
           type: string
           example: "SELECT `id`, `value`, `location` FROM `air_quality` WHERE `location`\
@@ -5318,9 +5051,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 39693413-e0ce-46da-ad5e-029c0556d439
         funder_name:
           type: string
           example: European Commission
@@ -5354,9 +5087,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: ce9d11f0-60a2-448d-a3e4-44719a443e8a
         value:
           type: string
           example: 10.70124/dc4zh-9ce78
@@ -5455,9 +5188,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 787439d0-e85e-400c-a7e6-996a023bfad9
         name:
           type: string
           example: Air Quality
@@ -5465,9 +5198,9 @@ components:
           type: string
           example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 2b5b2b03-fdd0-40d6-afe0-e5d02fd839e4
         internal_name:
           type: string
           example: air_quality
@@ -5518,9 +5251,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: 41ed10e0-687b-4e18-8521-810f5cffbce1
         name:
           type: string
           example: Air Quality
@@ -5528,9 +5261,9 @@ components:
           type: string
           example: Air Quality in Austria
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: a8fec026-dfaf-4b1d-8f6c-f01720d91705
         internal_name:
           type: string
           example: air_quality
@@ -5567,9 +5300,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: a453e444-e00d-41ca-902c-11e9c54b39f1
         name:
           maxLength: 64
           minLength: 0
@@ -5603,26 +5336,20 @@ components:
           example: Column comment
         enums:
           type: array
-          example:
-          - val1
           items:
-            type: string
-            example: "[\"val1\"]"
+            $ref: "#/components/schemas/EnumDto"
         sets:
           type: array
-          example:
-          - val1
           items:
-            type: string
-            example: "[\"val1\"]"
+            $ref: "#/components/schemas/SetDto"
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 911f9052-c58c-4e1c-b3f2-66af2107be16
         table_id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: bfffa915-a547-4466-9c65-ddc0d38fdb08
         ord:
           type: integer
           format: int32
@@ -5705,9 +5432,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 23
+          type: string
+          format: uuid
+          example: 8cabc011-4bdf-44d4-9d33-b2648e2ddbf1
         uri:
           type: string
           example: http://www.wikidata.org/entity/Q202444
@@ -5718,6 +5445,32 @@ components:
           type: string
           example: "name typically used to differentiate people from the same family,\
             \ clan, or other social group who have a common last name"
+    EnumDto:
+      required:
+      - id
+      - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 5343bb3d-14d3-4eb7-a86f-b8fc553cb315
+        value:
+          type: string
+          example: "3"
+    SetDto:
+      required:
+      - id
+      - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 7eb4eded-bacc-4a91-84db-a9ae6ddafda7
+        value:
+          type: string
+          example: "3"
     UnitBriefDto:
       required:
       - id
@@ -5725,9 +5478,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 34
+          type: string
+          format: uuid
+          example: ba1935e8-6817-488f-af0a-f54389af9000
         uri:
           type: string
           example: http://www.wikidata.org/entity/Q1422583
@@ -5762,33 +5515,6 @@ components:
           - read
           - write_own
           - write_all
-    CreateUserDto:
-      required:
-      - email
-      - password
-      - username
-      type: object
-      properties:
-        username:
-          pattern: "^[a-z0-9]{3,}$"
-          type: string
-          example: user
-        email:
-          type: string
-          example: user@example.com
-        password:
-          type: string
-    LoginRequestDto:
-      required:
-      - password
-      - username
-      type: object
-      properties:
-        username:
-          type: string
-          example: user
-        password:
-          type: string
     OntologyCreateDto:
       required:
       - prefix
@@ -6099,18 +5825,18 @@ components:
           items:
             $ref: "#/components/schemas/SaveIdentifierCreatorDto"
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: d002e8d5-8db4-4ff7-ab3a-bc3f52d9ec44
         query_id:
-          type: integer
-          format: int64
-        view_id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+        view_id:
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
         publication_day:
           type: integer
           format: int32
@@ -6139,9 +5865,9 @@ components:
           type: string
           example: Air Quality
         container_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 0888e108-d521-46e2-9d3e-82099185305b
         is_public:
           type: boolean
           example: true
@@ -6162,14 +5888,79 @@ components:
           type: string
           example: Air Quality
         query:
-          type: string
-          example: SELECT `id` FROM `air_quality`
+          $ref: "#/components/schemas/SubsetDto"
         is_public:
           type: boolean
           example: true
         is_schema_public:
           type: boolean
           example: true
+    FilterDto:
+      required:
+      - column_id
+      - operator_id
+      - type
+      - value
+      type: object
+      properties:
+        type:
+          type: string
+          example: where
+          enum:
+          - where
+          - or
+          - and
+        value:
+          type: string
+          example: "1"
+        column_id:
+          type: string
+          format: uuid
+          example: 14128033-54b5-4818-a489-21b0dded86e2
+        operator_id:
+          type: string
+          format: uuid
+          example: 67c5b54d-2eb0-4f42-8dc1-a504562e9f32
+    OrderDto:
+      required:
+      - column_id
+      type: object
+      properties:
+        direction:
+          type: string
+          example: asc
+          enum:
+          - asc
+          - desc
+        column_id:
+          type: string
+          format: uuid
+          example: e891ba86-0258-41a6-a8d9-ff58bc10b618
+    SubsetDto:
+      required:
+      - columns
+      - table_id
+      type: object
+      properties:
+        columns:
+          type: array
+          example:
+          - e891ba86-0258-41a6-a8d9-ff58bc10b618
+          items:
+            type: string
+            format: uuid
+        filter:
+          type: array
+          items:
+            $ref: "#/components/schemas/FilterDto"
+        order:
+          type: array
+          items:
+            $ref: "#/components/schemas/OrderDto"
+        table_id:
+          type: string
+          format: uuid
+          example: f7df2a7d-4ade-4c78-97b0-7c744d0893c7
     CreateForeignKeyDto:
       required:
       - columns
@@ -6179,16 +5970,24 @@ components:
       properties:
         columns:
           type: array
+          example:
+          - id
           items:
             type: string
+            example: "[\"id\"]"
         referenced_table:
           type: string
+          example: sensor
         referenced_columns:
           type: array
+          example:
+          - other_id
           items:
             type: string
+            example: "[\"other_id\"]"
         on_update:
           type: string
+          example: cascade
           enum:
           - restrict
           - cascade
@@ -6197,6 +5996,7 @@ components:
           - set_default
         on_delete:
           type: string
+          example: cascade
           enum:
           - restrict
           - cascade
@@ -6215,7 +6015,7 @@ components:
           example: Date
         type:
           type: string
-          example: string
+          example: varchar
           enum:
           - char
           - varchar
@@ -6368,10 +6168,10 @@ components:
           format: int64
           example: 50
         image_id:
-          type: integer
+          type: string
           description: Image ID
-          format: int64
-          example: 1
+          format: uuid
+          example: 2360f3c4-85e0-4fac-a7c6-73b296b9dde2
         ui_host:
           type: string
           example: example.com
@@ -6394,23 +6194,15 @@ components:
       - image
       - internal_name
       - name
-      - quota
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 7ddb7e87-b965-43a2-9a24-4fa406d998f4
         name:
           type: string
           example: Air Quality
-        host:
-          type: string
-          example: data-db
-        port:
-          type: integer
-          format: int32
-          example: 3306
         image:
           $ref: "#/components/schemas/ImageDto"
         quota:
@@ -6433,13 +6225,6 @@ components:
         internal_name:
           type: string
           example: air_quality
-        ui_host:
-          type: string
-          example: example.com
-        ui_port:
-          type: integer
-          format: int32
-          example: 3306
     ColumnBriefDto:
       required:
       - database_id
@@ -6451,9 +6236,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: a453e444-e00d-41ca-902c-11e9c54b39f1
         name:
           maxLength: 64
           minLength: 0
@@ -6463,13 +6248,13 @@ components:
           type: string
           example: firstname
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 911f9052-c58c-4e1c-b3f2-66af2107be16
         table_id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: bfffa915-a547-4466-9c65-ddc0d38fdb08
         internal_name:
           maxLength: 64
           minLength: 0
@@ -6517,8 +6302,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: ba1935e8-6817-488f-af0a-f54389af9000
         uri:
           type: string
         name:
@@ -6539,8 +6325,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: 7c491e40-082a-47b8-b82c-51d03c520466
         uri:
           type: string
           example: http://www.wikidata.org/
@@ -6600,10 +6387,12 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: ae3f795b-a3da-4ebe-bdc4-21a8ce631e6f
         type:
           type: string
+          example: WARNING
           enum:
           - error
           - warning
@@ -6629,24 +6418,20 @@ components:
       required:
       - default
       - id
-      - jdbc_method
       - name
       - version
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 5
+          type: string
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcce
         name:
           type: string
           example: mariadb
         version:
           type: string
           example: "10.5"
-        jdbc_method:
-          type: string
-          example: mariadb
         default:
           type: boolean
           example: false
@@ -6712,6 +6497,153 @@ components:
           type: string
         '@type':
           type: string
+    ViewColumnDto:
+      required:
+      - database_id
+      - id
+      - internal_name
+      - is_null_allowed
+      - name
+      - ord
+      - type
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 6aec3a91-2e0b-4e92-a16a-9c3c5e892da1
+        name:
+          maxLength: 64
+          minLength: 0
+          type: string
+          example: Given Name
+        size:
+          type: integer
+          format: int64
+          example: 255
+        d:
+          type: integer
+          format: int64
+          example: 0
+        description:
+          maxLength: 2048
+          minLength: 0
+          type: string
+          example: Column comment
+        database_id:
+          type: string
+          format: uuid
+          example: 2b5b2b03-fdd0-40d6-afe0-e5d02fd839e4
+        ord:
+          type: integer
+          format: int32
+          example: 0
+        internal_name:
+          maxLength: 64
+          minLength: 0
+          type: string
+          example: given_name
+        index_length:
+          type: integer
+          format: int64
+          example: 255
+        length:
+          type: integer
+          format: int64
+          example: 255
+        type:
+          type: string
+          example: varchar
+          enum:
+          - char
+          - varchar
+          - binary
+          - varbinary
+          - tinyblob
+          - tinytext
+          - text
+          - blob
+          - mediumtext
+          - mediumblob
+          - longtext
+          - longblob
+          - enum
+          - set
+          - serial
+          - bit
+          - tinyint
+          - bool
+          - smallint
+          - mediumint
+          - int
+          - bigint
+          - float
+          - double
+          - decimal
+          - date
+          - datetime
+          - timestamp
+          - time
+          - year
+        is_null_allowed:
+          type: boolean
+          example: false
+    ViewDto:
+      required:
+      - columns
+      - database_id
+      - id
+      - identifiers
+      - internal_name
+      - name
+      - owner
+      - query
+      - query_hash
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 787439d0-e85e-400c-a7e6-996a023bfad9
+        name:
+          type: string
+          example: Air Quality
+        identifiers:
+          type: array
+          items:
+            $ref: "#/components/schemas/IdentifierDto"
+        query:
+          type: string
+          example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
+        owner:
+          $ref: "#/components/schemas/UserBriefDto"
+        columns:
+          type: array
+          items:
+            $ref: "#/components/schemas/ViewColumnDto"
+        last_retrieved:
+          type: string
+          format: date-time
+        database_id:
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
+        internal_name:
+          type: string
+          example: air_quality
+        is_public:
+          type: boolean
+          example: true
+        is_schema_public:
+          type: boolean
+          example: true
+        initial_view:
+          type: boolean
+          description: True if it is the default view for the database
+          example: true
+        query_hash:
+          type: string
+          example: 7de03e818900b6ea6d58ad0306d4a741d658c6df3d1964e89ed2395d8c7e7916
     ConstraintsDto:
       type: object
       properties:
@@ -6736,86 +6668,13 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/PrimaryKeyDto"
-    DatabaseDto:
-      required:
-      - accesses
-      - contact
-      - exchange_name
-      - id
-      - identifiers
-      - internal_name
-      - is_public
-      - is_schema_public
-      - name
-      - owner
-      - subsets
-      - tables
-      - views
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 3
-        name:
-          type: string
-          example: Air Quality
-        description:
-          type: string
-          example: Air Quality
-        tables:
-          type: array
-          items:
-            $ref: "#/components/schemas/TableDto"
-        views:
-          type: array
-          items:
-            $ref: "#/components/schemas/ViewDto"
-        container:
-          $ref: "#/components/schemas/ContainerDto"
-        accesses:
-          type: array
-          items:
-            $ref: "#/components/schemas/DatabaseAccessDto"
-        identifiers:
-          type: array
-          items:
-            $ref: "#/components/schemas/IdentifierDto"
-        subsets:
-          type: array
-          items:
-            $ref: "#/components/schemas/IdentifierDto"
-        contact:
-          $ref: "#/components/schemas/UserBriefDto"
-        owner:
-          $ref: "#/components/schemas/UserBriefDto"
-        last_retrieved:
-          type: string
-          format: date-time
-        exchange_name:
-          type: string
-          example: dbrepo
-        exchange_type:
-          type: string
-          example: topic
-        internal_name:
-          type: string
-          example: air_quality
-        is_public:
-          type: boolean
-          example: true
-        is_schema_public:
-          type: boolean
-          example: true
-        preview_image:
-          type: string
     ForeignKeyBriefDto:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
     ForeignKeyDto:
       required:
       - name
@@ -6825,9 +6684,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
         name:
           type: string
           example: fk_name
@@ -6865,9 +6724,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
         column:
           $ref: "#/components/schemas/ColumnBriefDto"
         foreign_key:
@@ -6881,9 +6740,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: d984f9d7-e8a7-4b81-b59a-862db1871f18
         table:
           $ref: "#/components/schemas/TableBriefDto"
         column:
@@ -6905,9 +6764,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: d346f844-b84c-490f-9aec-725a2dc8f820
         name:
           type: string
           example: Air Quality
@@ -6929,17 +6788,15 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/ColumnDto"
-        database:
-          $ref: "#/components/schemas/DatabaseDto"
         constraints:
           $ref: "#/components/schemas/ConstraintsDto"
         last_retrieved:
           type: string
           format: date-time
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         internal_name:
           type: string
           example: air_quality
@@ -6989,9 +6846,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 5
+          type: string
+          format: uuid
+          example: d984f9d7-e8a7-4b81-b59a-862db1871f13
         name:
           type: string
           example: uk_name
@@ -7001,155 +6858,6 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/ColumnBriefDto"
-    ViewColumnDto:
-      required:
-      - database_id
-      - id
-      - internal_name
-      - is_null_allowed
-      - name
-      - ord
-      - type
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 12
-        name:
-          maxLength: 64
-          minLength: 0
-          type: string
-          example: Given Name
-        size:
-          type: integer
-          format: int64
-          example: 255
-        d:
-          type: integer
-          format: int64
-          example: 0
-        description:
-          maxLength: 2048
-          minLength: 0
-          type: string
-          example: Column comment
-        database_id:
-          type: integer
-          format: int64
-          example: 1
-        ord:
-          type: integer
-          format: int32
-          example: 0
-        internal_name:
-          maxLength: 64
-          minLength: 0
-          type: string
-          example: given_name
-        index_length:
-          type: integer
-          format: int64
-          example: 255
-        length:
-          type: integer
-          format: int64
-          example: 255
-        type:
-          type: string
-          example: varchar
-          enum:
-          - char
-          - varchar
-          - binary
-          - varbinary
-          - tinyblob
-          - tinytext
-          - text
-          - blob
-          - mediumtext
-          - mediumblob
-          - longtext
-          - longblob
-          - enum
-          - set
-          - serial
-          - bit
-          - tinyint
-          - bool
-          - smallint
-          - mediumint
-          - int
-          - bigint
-          - float
-          - double
-          - decimal
-          - date
-          - datetime
-          - timestamp
-          - time
-          - year
-        is_null_allowed:
-          type: boolean
-          example: false
-    ViewDto:
-      required:
-      - columns
-      - database_id
-      - id
-      - identifiers
-      - internal_name
-      - name
-      - owner
-      - query
-      - query_hash
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 4
-        name:
-          type: string
-          example: Air Quality
-        identifiers:
-          type: array
-          items:
-            $ref: "#/components/schemas/IdentifierDto"
-        query:
-          type: string
-          example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
-        database:
-          $ref: "#/components/schemas/DatabaseDto"
-        owner:
-          $ref: "#/components/schemas/UserBriefDto"
-        columns:
-          type: array
-          items:
-            $ref: "#/components/schemas/ViewColumnDto"
-        last_retrieved:
-          type: string
-          format: date-time
-        database_id:
-          type: integer
-          format: int64
-          example: 1
-        internal_name:
-          type: string
-          example: air_quality
-        is_public:
-          type: boolean
-          example: true
-        is_schema_public:
-          type: boolean
-          example: true
-        initial_view:
-          type: boolean
-          description: True if it is the default view for the database
-          example: true
-        query_hash:
-          type: string
-          example: 7de03e818900b6ea6d58ad0306d4a741d658c6df3d1964e89ed2395d8c7e7916
     TableColumnEntityDto:
       required:
       - column_id
@@ -7168,17 +6876,17 @@ components:
           type: string
           example: open source semantic web framework for Java
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 475b4107-a64d-4495-a7ef-3cb0dadd4804
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 9a9208af-90ea-4382-9a11-0c8f6d89bd1f
         column_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 297860e3-3b29-451c-ae8a-a85ed5941018
     ContainerBriefDto:
       required:
       - count
@@ -7191,9 +6899,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 7ddb7e87-b965-43a2-9a24-4fa406d998f4
         hash:
           type: string
           example: f829dd8a884182d0da846f365dee1221fd16610a14c81b8f9f295ff162749e50
@@ -7221,8 +6929,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: 8cabc011-4bdf-44d4-9d33-b2648e2ddbf1
         uri:
           type: string
         name:
diff --git a/.docs/.openapi/api.yaml b/.docs/.openapi/api.yaml
index c23937c6e72cdc9a8b8956b34aeeec63bfd15ce2..8c5ea7a152b470d31b4dd950b661684d3c83fda2 100644
--- a/.docs/.openapi/api.yaml
+++ b/.docs/.openapi/api.yaml
@@ -16,7 +16,7 @@ info:
     name: Apache 2.0
     url: 'https://www.apache.org/licenses/LICENSE-2.0'
   title: DBRepo REST API
-  version: 1.7.2
+  version: 1.7.0
 servers:
   - description: Test Instance
     url: 'https://test.dbrepo.tuwien.ac.at'
@@ -153,22 +153,21 @@ paths:
       summary: Get view data
       description: >-
         Gets data from a view of a database. For private databases, the user
-        needs at least *READ* access to the associated database. Requires role
-        `view-database-view-data`.
+        needs at least *READ* access to the associated database.
       operationId: getData
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: page
           in: query
           required: false
@@ -242,22 +241,21 @@ paths:
       summary: Get view data
       description: >-
         Gets data from a view of a database. For private databases, the user
-        needs at least *READ* access to the associated database. Requires role
-        `view-database-view-data`.
+        needs at least *READ* access to the associated database.
       operationId: getData_1
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: page
           in: query
           required: false
@@ -341,14 +339,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -424,14 +422,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Authorization
           in: header
           required: true
@@ -487,14 +485,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Authorization
           in: header
           required: true
@@ -552,14 +550,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Authorization
           in: header
           required: true
@@ -616,14 +614,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -702,14 +700,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: subsetId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -795,14 +793,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: subsetId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -884,14 +882,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: queryId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -956,14 +954,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Authorization
           in: header
           required: true
@@ -1022,8 +1020,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: persisted
           in: query
           required: false
@@ -1076,8 +1074,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -1100,7 +1098,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/ExecuteStatementDto'
+              $ref: '#/components/schemas/SubsetDto'
         required: true
       responses:
         '201':
@@ -1165,14 +1163,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -1229,14 +1227,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: size
           in: query
           required: false
@@ -1294,14 +1292,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: timestamp
           in: query
           required: false
@@ -1360,14 +1358,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: subsetId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Accept
           in: header
           required: true
@@ -1422,101 +1420,131 @@ paths:
       security:
         - basicAuth: []
         - bearerAuth: []
-  /api/database:
+  '/api/user/{userId}':
     get:
       tags:
-        - database-endpoint
-      summary: List databases
+        - user-endpoint
+      summary: Get user
       description: >-
-        Lists all databases in the metadata database. Requests with HTTP method
-        **GET** return the list of databases, requests with HTTP method **HEAD**
-        only the number in the `X-Count` header.
-      operationId: list1
+        Gets own user information from the metadata database. Requires
+        authentication. Foreign user information can only be obtained if
+        additional role `find-foreign-user` is present. Finding information
+        about internal users results in a 404 error.
+      operationId: find
       parameters:
-        - name: internal_name
-          in: query
-          required: false
+        - name: userId
+          in: path
+          required: true
           schema:
             type: string
+            format: uuid
       responses:
         '200':
-          description: List of databases
-          headers:
-            Access-Control-Expose-Headers:
-              description: Expose `X-Count` custom header
-              required: true
-              style: simple
-            X-Count:
-              description: Number of databases
-              required: true
-              style: simple
+          description: Found user
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/DatabaseBriefDto'
-    post:
+                $ref: '#/components/schemas/UserDto'
+        '403':
+          description: Find user is not permitted
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '404':
+          description: User was not found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+      security:
+        - bearerAuth: []
+        - basicAuth: []
+    put:
       tags:
-        - database-endpoint
-      summary: Create database
-      description: >-
-        Creates a database in the container with id. Requires roles
-        `create-database`.
-      operationId: create_5
+        - user-endpoint
+      summary: Update user
+      description: Updates user with id. Requires role `modify-user-information`.
+      operationId: modify
+      parameters:
+        - name: userId
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/CreateDatabaseDto'
+              $ref: '#/components/schemas/UserUpdateDto'
         required: true
       responses:
-        '201':
-          description: Created a new database
+        '202':
+          description: Modified user information
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/DatabaseBriefDto'
+                $ref: '#/components/schemas/UserDto'
         '400':
-          description: Database create query is malformed or image is not supported
+          description: Modify user query is malformed
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
         '403':
-          description: >-
-            Database create permission is missing or grant permissions at broker
-            service failed
+          description: Not allowed to modify user metadata
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
         '404':
-          description: Failed to fin container/user/database in metadata database
+          description: Failed to find database/user in metadata database
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '409':
-          description: Query store could not be created
+        '503':
+          description: Failed to modify user at auth service
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '423':
-          description: Database quota exceeded
+      security:
+        - bearerAuth: []
+        - basicAuth: []
+    head:
+      tags:
+        - user-endpoint
+      summary: Get user
+      description: >-
+        Gets own user information from the metadata database. Requires
+        authentication. Foreign user information can only be obtained if
+        additional role `find-foreign-user` is present. Finding information
+        about internal users results in a 404 error.
+      operationId: find_1
+      parameters:
+        - name: userId
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
+      responses:
+        '200':
+          description: Found user
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Connection to search service failed
+                $ref: '#/components/schemas/UserDto'
+        '403':
+          description: Find user is not permitted
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to save in search service
+        '404':
+          description: User was not found
           content:
             application/json:
               schema:
@@ -1524,7 +1552,109 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
-    head:
+  /api/database:
+    get:
+      tags:
+        - database-endpoint
+      summary: List databases
+      description: >-
+        Lists all databases in the metadata database. Requests with HTTP method
+        **GET** return the list of databases, requests with HTTP method **HEAD**
+        only the number in the `X-Count` header.
+      operationId: list1
+      parameters:
+        - name: internal_name
+          in: query
+          required: false
+          schema:
+            type: string
+      responses:
+        '200':
+          description: List of databases
+          headers:
+            Access-Control-Expose-Headers:
+              description: Expose `X-Count` custom header
+              required: true
+              style: simple
+            X-Count:
+              description: Number of databases
+              required: true
+              style: simple
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/DatabaseBriefDto'
+    post:
+      tags:
+        - database-endpoint
+      summary: Create database
+      description: >-
+        Creates a database in the container with id. Requires roles
+        `create-database`.
+      operationId: create_4
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateDatabaseDto'
+        required: true
+      responses:
+        '201':
+          description: Created a new database
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/DatabaseBriefDto'
+        '400':
+          description: Database create query is malformed or image is not supported
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '403':
+          description: >-
+            Database create permission is missing or grant permissions at broker
+            service failed
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '404':
+          description: Failed to fin container/user/database in metadata database
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '409':
+          description: Query store could not be created
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '423':
+          description: Database quota exceeded
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '502':
+          description: Connection to search service failed
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+        '503':
+          description: Failed to save in search service
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
+      security:
+        - bearerAuth: []
+        - basicAuth: []
+    head:
       tags:
         - database-endpoint
       summary: List databases
@@ -1568,14 +1698,14 @@ paths:
         with HTTP method **HEAD** only the status. When the user has at least
         *READ* access, the status 200 is returned, 403 otherwise. Requires role
         `check-database-access` or `check-foreign-database-access`.
-      operationId: find
+      operationId: find_2
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: userId
           in: path
           required: true
@@ -1617,8 +1747,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: userId
           in: path
           required: true
@@ -1678,14 +1808,14 @@ paths:
       description: >-
         Give a user with given id access to some database with given id.
         Requires role `create-database-access`.
-      operationId: create_8
+      operationId: create_7
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: userId
           in: path
           required: true
@@ -1751,8 +1881,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: userId
           in: path
           required: true
@@ -1805,14 +1935,14 @@ paths:
         with HTTP method **HEAD** only the status. When the user has at least
         *READ* access, the status 200 is returned, 403 otherwise. Requires role
         `check-database-access` or `check-foreign-database-access`.
-      operationId: find_1
+      operationId: find_3
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: userId
           in: path
           required: true
@@ -1841,19 +1971,15 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
-  '/api/user/{userId}':
+  '/api/ontology/{ontologyId}':
     get:
       tags:
-        - user-endpoint
-      summary: Get user
-      description: >-
-        Gets own user information from the metadata database. Requires
-        authentication. Foreign user information can only be obtained if
-        additional role `find-foreign-user` is present. Finding information
-        about internal users results in a 404 error.
-      operationId: find_2
+        - ontology-endpoint
+      summary: Find ontology
+      description: Finds an ontology with id in the metadata database.
+      operationId: find_4
       parameters:
-        - name: userId
+        - name: ontologyId
           in: path
           required: true
           schema:
@@ -1861,34 +1987,25 @@ paths:
             format: uuid
       responses:
         '200':
-          description: Found user
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/UserDto'
-        '403':
-          description: Find user is not permitted
+          description: Find one ontology
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ApiErrorDto'
+                $ref: '#/components/schemas/OntologyDto'
         '404':
-          description: User was not found
+          description: Could not find ontology
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-      security:
-        - bearerAuth: []
-        - basicAuth: []
     put:
       tags:
-        - user-endpoint
-      summary: Update user
-      description: Updates user with id. Requires role `modify-user-information`.
-      operationId: modify
+        - ontology-endpoint
+      summary: Update ontology
+      description: Updates an ontology with id. Requires role `update-ontology`.
+      operationId: update
       parameters:
-        - name: userId
+        - name: ontologyId
           in: path
           required: true
           schema:
@@ -1898,29 +2015,44 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/UserUpdateDto'
+              $ref: '#/components/schemas/OntologyModifyDto'
         required: true
       responses:
         '202':
-          description: Modified user information
+          description: Updated ontology successfully
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/UserDto'
-        '400':
-          description: Modify user query is malformed
+                $ref: '#/components/schemas/OntologyDto'
+        '404':
+          description: Could not find ontology
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '403':
-          description: Not allowed to modify user metadata
+      security:
+        - bearerAuth: []
+        - basicAuth: []
+    delete:
+      tags:
+        - ontology-endpoint
+      summary: Delete ontology
+      description: Deletes an ontology with given id. Requires role `delete-ontology`.
+      operationId: delete
+      parameters:
+        - name: ontologyId
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
+      responses:
+        '202':
+          description: Deleted ontology successfully
           content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
+            application/json: {}
         '404':
-          description: Failed to find database/user in metadata database
+          description: Could not find ontology
           content:
             application/json:
               schema:
@@ -1928,15 +2060,15 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
-  '/api/user/{userId}/password':
+  '/api/message/{messageId}':
     put:
       tags:
-        - user-endpoint
-      summary: Update user password
-      description: Updates password of user with id. Requires authentication.
-      operationId: password
+        - message-endpoint
+      summary: Update message
+      description: Updates a message with id. Requires role `update-maintenance-message`.
+      operationId: update_1
       parameters:
-        - name: userId
+        - name: messageId
           in: path
           required: true
           schema:
@@ -1946,37 +2078,44 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/UserPasswordDto'
+              $ref: '#/components/schemas/BannerMessageUpdateDto'
         required: true
       responses:
         '202':
-          description: Modified user password
-        '400':
-          description: Invalid password payload
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '403':
-          description: Not allowed to change foreign user password
+          description: Updated message
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ApiErrorDto'
+                $ref: '#/components/schemas/BannerMessageBriefDto'
         '404':
-          description: Failed to find database/user in metadata database
+          description: Could not find message
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Connection to auth service failed
+      security:
+        - bearerAuth: []
+        - basicAuth: []
+    delete:
+      tags:
+        - message-endpoint
+      summary: Delete message
+      description: Deletes a message with id. Requires role `delete-maintenance-message`.
+      operationId: delete_1
+      parameters:
+        - name: messageId
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
+      responses:
+        '202':
+          description: Deleted message
           content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to get user in auth service
+            application/json: {}
+        '404':
+          description: Could not find message
           content:
             application/json:
               schema:
@@ -1984,255 +2123,8 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
-  /api/user/token:
-    put:
-      tags:
-        - user-endpoint
-      summary: Refresh token
-      description: Refreshes user token by refresh token.
-      operationId: refreshToken
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/RefreshTokenRequestDto'
-        required: true
-      responses:
-        '202':
-          description: Refreshed user token
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/TokenDto'
-        '400':
-          description: Invalid refresh token
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '403':
-          description: Not allowed
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Connection to auth service failed
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-    post:
-      tags:
-        - user-endpoint
-      summary: Create token
-      description: Creates a user token via the Auth Service.
-      operationId: getToken
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/LoginRequestDto'
-        required: true
-      responses:
-        '202':
-          description: Obtained user token
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/TokenDto'
-        '400':
-          description: Invalid login request
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '403':
-          description: Not allowed to get token
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '404':
-          description: Failed to find user in auth database
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '428':
-          description: >-
-            Account is not fully setup in auth service (requires password
-            change?)
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Connection to auth service failed
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to get user in auth service
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-  '/api/ontology/{ontologyId}':
-    get:
-      tags:
-        - ontology-endpoint
-      summary: Find ontology
-      description: Finds an ontology with id in the metadata database.
-      operationId: find_3
-      parameters:
-        - name: ontologyId
-          in: path
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '200':
-          description: Find one ontology
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/OntologyDto'
-        '404':
-          description: Could not find ontology
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-    put:
-      tags:
-        - ontology-endpoint
-      summary: Update ontology
-      description: Updates an ontology with id. Requires role `update-ontology`.
-      operationId: update
-      parameters:
-        - name: ontologyId
-          in: path
-          required: true
-          schema:
-            type: integer
-            format: int64
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/OntologyModifyDto'
-        required: true
-      responses:
-        '202':
-          description: Updated ontology successfully
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/OntologyDto'
-        '404':
-          description: Could not find ontology
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-      security:
-        - bearerAuth: []
-        - basicAuth: []
-    delete:
-      tags:
-        - ontology-endpoint
-      summary: Delete ontology
-      description: Deletes an ontology with given id. Requires role `delete-ontology`.
-      operationId: delete
-      parameters:
-        - name: ontologyId
-          in: path
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '202':
-          description: Deleted ontology successfully
-          content:
-            application/json: {}
-        '404':
-          description: Could not find ontology
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-      security:
-        - bearerAuth: []
-        - basicAuth: []
-  '/api/message/{messageId}':
-    put:
-      tags:
-        - message-endpoint
-      summary: Update message
-      description: Updates a message with id. Requires role `update-maintenance-message`.
-      operationId: update_1
-      parameters:
-        - name: messageId
-          in: path
-          required: true
-          schema:
-            type: integer
-            format: int64
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/BannerMessageUpdateDto'
-        required: true
-      responses:
-        '202':
-          description: Updated message
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/BannerMessageBriefDto'
-        '404':
-          description: Could not find message
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-      security:
-        - bearerAuth: []
-        - basicAuth: []
-    delete:
-      tags:
-        - message-endpoint
-      summary: Delete message
-      description: Deletes a message with id. Requires role `delete-maintenance-message`.
-      operationId: delete_1
-      parameters:
-        - name: messageId
-          in: path
-          required: true
-          schema:
-            type: integer
-            format: int64
-      responses:
-        '202':
-          description: Deleted message
-          content:
-            application/json: {}
-        '404':
-          description: Could not find message
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-      security:
-        - bearerAuth: []
-        - basicAuth: []
-  '/api/image/{imageId}':
-    get:
+  '/api/image/{imageId}':
+    get:
       tags:
         - image-endpoint
       summary: Find image
@@ -2243,8 +2135,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Found image
@@ -2271,8 +2163,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -2308,8 +2200,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Deleted image successfully
@@ -2330,14 +2222,14 @@ paths:
       description: >-
         Finds an identifier with id. The response format depends on the HTTP
         `Accept` header set on the request.
-      operationId: find_6
+      operationId: find_7
       parameters:
         - name: identifierId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Accept
           in: header
           required: true
@@ -2365,6 +2257,12 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
+        '403':
+          description: Not allowed to view identifier
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
         '404':
           description: Identifier could not be found
           content:
@@ -2416,8 +2314,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -2475,8 +2373,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Deleted identifier
@@ -2521,8 +2419,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Published identifier
@@ -2577,8 +2475,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -2631,48 +2529,23 @@ paths:
         - view-endpoint
       summary: Get view
       description: Gets a view with id in the metadata database.
-      operationId: find_7
+      operationId: find_8
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Find view successfully
-          headers:
-            X-Username:
-              description: The authentication username
-              style: simple
-            Access-Control-Expose-Headers:
-              description: Expose custom headers
-              style: simple
-            X-Type:
-              description: The JDBC connection type
-              style: simple
-            X-View:
-              description: The view internal name
-              style: simple
-            X-Database:
-              description: The database internal name
-              style: simple
-            X-Password:
-              description: The authentication password
-              style: simple
-            X-Host:
-              description: The database hostname
-              style: simple
-            X-Port:
-              description: The database port number
-              style: simple
           content:
             application/json:
               schema:
@@ -2705,14 +2578,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -2770,14 +2643,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: viewId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Delete view successfully
@@ -2836,27 +2709,17 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Find table successfully
-          headers:
-            X-Username:
-              description: The authentication username
-              style: simple
-            Access-Control-Expose-Headers:
-              description: Expose custom headers
-              style: simple
-            X-Password:
-              description: The authentication password
-              style: simple
           content:
             application/json:
               schema:
@@ -2873,18 +2736,6 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Failed to establish connection with broker service
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to obtain queue information from broker service
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
       security:
         - bearerAuth: []
         - basicAuth: []
@@ -2899,14 +2750,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -2967,14 +2818,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Delete table successfully
@@ -3026,14 +2877,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Updated table statistics successfully
@@ -3086,20 +2937,20 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: columnId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -3162,8 +3013,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -3225,8 +3076,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Refreshed database views metadata
@@ -3276,8 +3127,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Refreshed database tables metadata
@@ -3298,7 +3149,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
         '404':
-          description: Failed to fin user/database in metadata database
+          description: Failed to find database in metadata database
           content:
             application/json:
               schema:
@@ -3330,8 +3181,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: View of image was successful
@@ -3364,8 +3215,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -3412,93 +3263,6 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
-  /api/user:
-    get:
-      tags:
-        - user-endpoint
-      summary: List users
-      description: >-
-        Lists users known to the metadata database. Internal users are omitted
-        from the result list. If the optional query parameter `username` is
-        present, the result list can be filtered by matching this exact
-        username.
-      operationId: findAll
-      parameters:
-        - name: username
-          in: query
-          required: false
-          schema:
-            type: string
-      responses:
-        '200':
-          description: List users
-          content:
-            application/json:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/UserBriefDto'
-    post:
-      tags:
-        - user-endpoint
-      summary: Create user
-      description: >-
-        Creates a user in the auth service and metadata database. Requires that
-        no credentials are sent in the request.
-      operationId: create1
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/CreateUserDto'
-        required: true
-      responses:
-        '201':
-          description: Created user
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/UserDto'
-        '400':
-          description: Parameters are not well-formed (likely email)
-          content:
-            application/json: {}
-        '403':
-          description: Internal authentication to the auth service is invalid
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '404':
-          description: Default role not found
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '409':
-          description: User with username already exists
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '417':
-          description: User with e-mail already exists
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Failed to create in auth service
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to create in auth service
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
   /api/ontology:
     get:
       tags:
@@ -3522,7 +3286,7 @@ paths:
       description: >-
         Creates an ontology in the metadata database. Requires role
         `create-ontology`.
-      operationId: create_1
+      operationId: create1
       requestBody:
         content:
           application/json:
@@ -3573,7 +3337,7 @@ paths:
       description: >-
         Creates a message in the metadata database. Requires role
         `create-maintenance-message`.
-      operationId: create_2
+      operationId: create_1
       requestBody:
         content:
           application/json:
@@ -3613,7 +3377,7 @@ paths:
       description: >-
         Creates a container image in the metadata database. Requires role
         `create-image`.
-      operationId: create_3
+      operationId: create_2
       requestBody:
         content:
           application/json:
@@ -3650,30 +3414,48 @@ paths:
       description: Lists all identifiers known to the metadata database
       operationId: findAll_4
       parameters:
+        - name: type
+          in: query
+          required: false
+          schema:
+            type: string
+            enum:
+              - database
+              - subset
+              - table
+              - view
+        - name: status
+          in: query
+          required: false
+          schema:
+            type: string
+            enum:
+              - draft
+              - published
         - name: dbid
           in: query
           required: false
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: qid
           in: query
           required: false
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: vid
           in: query
           required: false
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tid
           in: query
           required: false
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: Accept
           in: header
           required: true
@@ -3693,12 +3475,6 @@ paths:
                 type: array
                 items:
                   $ref: '#/components/schemas/LdDatasetDto'
-        '406':
-          description: 'Identifier could not be exported, the requested style is not known'
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
     post:
       tags:
         - identifier-endpoint
@@ -3708,7 +3484,7 @@ paths:
         can only be created for objects the user has at least *READ* access in
         the associated database (requires role `create-identifier`) or for any
         object in any database (requires role `create-foreign-identifier`).
-      operationId: create_4
+      operationId: create_3
       requestBody:
         content:
           application/json:
@@ -3767,8 +3543,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Find views successfully
@@ -3794,14 +3570,14 @@ paths:
       description: >-
         Creates a view. This can only be performed by the database owner.
         Requires role `create-database-view`.
-      operationId: create_6
+      operationId: create_5
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -3833,6 +3609,12 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
+        '409':
+          description: View exists with name
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiErrorDto'
         '423':
           description: Create view resulted in an invalid query statement
           content:
@@ -3869,8 +3651,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: List tables
@@ -3900,14 +3682,14 @@ paths:
         - table-endpoint
       summary: Create table
       description: Creates a table in the database with id. Requires role `create-table`.
-      operationId: create_7
+      operationId: create_6
       parameters:
         - name: databaseId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       requestBody:
         content:
           application/json:
@@ -3990,7 +3772,7 @@ paths:
       description: >-
         Creates a container in the metadata database. Requires role
         `create-container`.
-      operationId: create_9
+      operationId: create_8
       requestBody:
         content:
           application/json:
@@ -4031,6 +3813,32 @@ paths:
       security:
         - bearerAuth: []
         - basicAuth: []
+  /api/user:
+    get:
+      tags:
+        - user-endpoint
+      summary: List users
+      description: >-
+        Lists users known to the metadata database. Internal users are omitted
+        from the result list. If the optional query parameter `username` is
+        present, the result list can be filtered by matching this exact
+        username.
+      operationId: findAll
+      parameters:
+        - name: username
+          in: query
+          required: false
+          schema:
+            type: string
+      responses:
+        '200':
+          description: List users
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/UserBriefDto'
   /api/unit:
     get:
       tags:
@@ -4055,14 +3863,14 @@ paths:
       description: >-
         Finds semantic entities by label or uri in an ontology with id. Requires
         role `execute-semantic-query`.
-      operationId: find_4
+      operationId: find_5
       parameters:
         - name: ontologyId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: label
           in: query
           required: false
@@ -4134,14 +3942,14 @@ paths:
         - message-endpoint
       summary: Find message
       description: Finds a message with id in the metadata database.
-      operationId: find_5
+      operationId: find_6
       parameters:
         - name: messageId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Get messages
@@ -4211,8 +4019,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Database found successfully
@@ -4237,19 +4045,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/ApiErrorDto'
         '404':
-          description: 'Database, user or exchange could not be found'
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '502':
-          description: Connection to the broker service could not be established
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ApiErrorDto'
-        '503':
-          description: Failed to find queue information in broker service
+          description: Database could not be found
           content:
             application/json:
               schema:
@@ -4271,14 +4067,14 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Suggested table semantics successfully
@@ -4333,20 +4129,20 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: tableId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
         - name: columnId
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Suggested table column semantics successfully
@@ -4389,8 +4185,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '200':
           description: Found container
@@ -4417,8 +4213,8 @@ paths:
           in: path
           required: true
           schema:
-            type: integer
-            format: int64
+            type: string
+            format: uuid
       responses:
         '202':
           description: Deleted container
@@ -4826,9 +4622,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 11
+          type: string
+          format: uuid
+          example: e41f94a6-2b94-4a12-ac0e-678684e1c070
         affiliation:
           type: string
           example: Brown University
@@ -4866,6 +4662,7 @@ components:
       required:
         - creators
         - database_id
+        - descriptions
         - id
         - owned_by
         - publication_year
@@ -4876,9 +4673,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: b97cd56b-66ca-4354-9e6c-f47210cfaaec
         type:
           type: string
           example: database
@@ -4895,6 +4692,10 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/IdentifierTitleDto'
+        descriptions:
+          type: array
+          items:
+            $ref: '#/components/schemas/IdentifierDescriptionDto'
         doi:
           type: string
           example: 10.1038/nphys1170
@@ -4908,21 +4709,18 @@ components:
             - draft
             - published
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         query_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         publication_year:
           type: integer
           format: int32
@@ -4931,18 +4729,18 @@ components:
           type: string
           format: uuid
           example: 2f45ef7a-7f9b-4667-9156-152c87fe1ca5
-    IdentifierTitleDto:
+    IdentifierDescriptionDto:
       required:
         - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
-        title:
           type: string
-          example: Airquality Demonstrator
+          format: uuid
+          example: e0e9692c-910b-4b60-b53a-fc7c358a917d
+        description:
+          type: string
+          example: 'Air quality reports at Stephansplatz, Vienna'
         language:
           type: string
           example: en
@@ -5133,119 +4931,329 @@ components:
             - zu
         type:
           type: string
+          example: Abstract
           enum:
-            - AlternativeTitle
-            - Subtitle
-            - TranslatedTitle
+            - Abstract
+            - Methods
+            - SeriesInformation
+            - TableOfContents
+            - TechnicalInfo
             - Other
-    QueryDto:
-      required:
-        - database_id
-        - execution
-        - id
-        - identifiers
-        - is_persisted
-        - owner
-        - query
-        - query_hash
-        - query_normalized
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 4
-        owner:
-          $ref: '#/components/schemas/UserBriefDto'
-        execution:
-          type: string
-          format: date-time
-          example: '2021-03-12T15:26:21.000Z'
-        query:
-          type: string
-          example: SELECT `id` FROM `air_quality`
-        type:
-          type: string
-          example: query
-          enum:
-            - query
-            - view
-        identifiers:
-          type: array
-          items:
-            $ref: '#/components/schemas/IdentifierBriefDto'
-        database_id:
-          type: integer
-          format: int64
-          example: 1
-        query_normalized:
-          type: string
-          example: SELECT `id` FROM `air_quality`
-        query_hash:
-          type: string
-          example: 17e682f060b5f8e47ea04c5c4855908b0a5ad612022260fe50e11ecb0cc0ab76
-        is_persisted:
-          type: boolean
-          example: true
-        result_hash:
-          type: string
-          example: 17e682f060b5f8e47ea04c5c4855908b0a5ad612022260fe50e11ecb0cc0ab76
-        result_number:
-          type: integer
-          format: int64
-          example: 1
-    UserBriefDto:
+    IdentifierTitleDto:
       required:
         - id
-        - username
       type: object
       properties:
         id:
           type: string
           format: uuid
-          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
-        username:
-          type: string
-          description: Only contains lowercase characters
-          example: jcarberry
-        name:
-          type: string
-          example: Josiah Carberry
-        orcid:
-          type: string
-          example: 0000-0002-1825-0097
-        qualified_name:
-          type: string
-          example: Josiah Carberry — @jcarberry
-        given_name:
-          type: string
-          example: Josiah
-        family_name:
+          example: 70ce5164-fd74-413f-8712-f996b91defbf
+        title:
           type: string
-          example: Carberry
-    TupleDto:
-      required:
-        - data
-      type: object
-      properties:
-        data:
-          type: object
-          additionalProperties:
-            type: object
-            example:
-              key: value
-          example:
-            key: value
-    ImportDto:
-      required:
-        - header
-        - location
-        - separator
-      type: object
-      properties:
-        location:
+          example: Airquality Demonstrator
+        language:
           type: string
-          example: file.csv
+          example: en
+          enum:
+            - ab
+            - aa
+            - af
+            - ak
+            - sq
+            - am
+            - ar
+            - an
+            - hy
+            - as
+            - av
+            - ae
+            - ay
+            - az
+            - bm
+            - ba
+            - eu
+            - be
+            - bn
+            - bh
+            - bi
+            - bs
+            - br
+            - bg
+            - my
+            - ca
+            - km
+            - ch
+            - ce
+            - ny
+            - zh
+            - cu
+            - cv
+            - kw
+            - co
+            - cr
+            - hr
+            - cs
+            - da
+            - dv
+            - nl
+            - dz
+            - en
+            - eo
+            - et
+            - ee
+            - fo
+            - fj
+            - fi
+            - fr
+            - ff
+            - gd
+            - gl
+            - lg
+            - ka
+            - de
+            - ki
+            - el
+            - kl
+            - gn
+            - gu
+            - ht
+            - ha
+            - he
+            - hz
+            - hi
+            - ho
+            - hu
+            - is
+            - io
+            - ig
+            - id
+            - ia
+            - ie
+            - iu
+            - ik
+            - ga
+            - it
+            - ja
+            - jv
+            - kn
+            - kr
+            - ks
+            - kk
+            - rw
+            - kv
+            - kg
+            - ko
+            - kj
+            - ku
+            - ky
+            - lo
+            - la
+            - lv
+            - lb
+            - li
+            - ln
+            - lt
+            - lu
+            - mk
+            - mg
+            - ms
+            - ml
+            - mt
+            - gv
+            - mi
+            - mr
+            - mh
+            - ro
+            - mn
+            - na
+            - nv
+            - nd
+            - ng
+            - ne
+            - se
+            - 'no'
+            - nb
+            - nn
+            - ii
+            - oc
+            - oj
+            - or
+            - om
+            - os
+            - pi
+            - pa
+            - ps
+            - fa
+            - pl
+            - pt
+            - qu
+            - rm
+            - rn
+            - ru
+            - sm
+            - sg
+            - sa
+            - sc
+            - sr
+            - sn
+            - sd
+            - si
+            - sk
+            - sl
+            - so
+            - st
+            - nr
+            - es
+            - su
+            - sw
+            - ss
+            - sv
+            - tl
+            - ty
+            - tg
+            - ta
+            - tt
+            - te
+            - th
+            - bo
+            - ti
+            - to
+            - ts
+            - tn
+            - tr
+            - tk
+            - tw
+            - ug
+            - uk
+            - ur
+            - uz
+            - ve
+            - vi
+            - vo
+            - wa
+            - cy
+            - fy
+            - wo
+            - xh
+            - yi
+            - yo
+            - za
+            - zu
+        type:
+          type: string
+          enum:
+            - AlternativeTitle
+            - Subtitle
+            - TranslatedTitle
+            - Other
+    QueryDto:
+      required:
+        - database_id
+        - execution
+        - id
+        - identifiers
+        - is_persisted
+        - owner
+        - query
+        - query_hash
+        - query_normalized
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 83ea2326-f8f6-4263-baf8-cdf88a54efc7
+        owner:
+          $ref: '#/components/schemas/UserBriefDto'
+        execution:
+          type: string
+          format: date-time
+          example: '2021-03-12T15:26:21.000Z'
+        query:
+          type: string
+          example: SELECT `id` FROM `air_quality`
+        type:
+          type: string
+          example: query
+          enum:
+            - query
+            - view
+        identifiers:
+          type: array
+          items:
+            $ref: '#/components/schemas/IdentifierBriefDto'
+        database_id:
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
+        query_normalized:
+          type: string
+          example: SELECT `id` FROM `air_quality`
+        query_hash:
+          type: string
+          example: 17e682f060b5f8e47ea04c5c4855908b0a5ad612022260fe50e11ecb0cc0ab76
+        is_persisted:
+          type: boolean
+          example: true
+        result_hash:
+          type: string
+          example: 17e682f060b5f8e47ea04c5c4855908b0a5ad612022260fe50e11ecb0cc0ab76
+        result_number:
+          type: integer
+          format: int64
+          example: 1
+    UserBriefDto:
+      required:
+        - id
+        - username
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 1ffc7b0e-9aeb-4e8b-b8f1-68f3936155b4
+        username:
+          type: string
+          description: Only contains lowercase characters
+          example: jcarberry
+        name:
+          type: string
+          example: Josiah Carberry
+        orcid:
+          type: string
+          example: 0000-0002-1825-0097
+        qualified_name:
+          type: string
+          example: Josiah Carberry — @jcarberry
+        given_name:
+          type: string
+          example: Josiah
+        family_name:
+          type: string
+          example: Carberry
+    TupleDto:
+      required:
+        - data
+      type: object
+      properties:
+        data:
+          type: object
+          additionalProperties:
+            type: object
+            example:
+              key: value
+          example:
+            key: value
+    ImportDto:
+      required:
+        - header
+        - location
+        - separator
+      type: object
+      properties:
+        location:
+          type: string
+          example: file.csv
         header:
           type: boolean
           description: >-
@@ -5261,14 +5269,72 @@ components:
         line_termination:
           type: string
           example: \r\n
-    ExecuteStatementDto:
+    FilterDto:
       required:
-        - statement
+        - column_id
+        - operator_id
+        - type
+        - value
       type: object
       properties:
-        statement:
+        type:
           type: string
-          example: SELECT `id` FROM `air_quality`
+          example: where
+          enum:
+            - where
+            - or
+            - and
+        value:
+          type: string
+          example: '1'
+        column_id:
+          type: string
+          format: uuid
+          example: 14128033-54b5-4818-a489-21b0dded86e2
+        operator_id:
+          type: string
+          format: uuid
+          example: 67c5b54d-2eb0-4f42-8dc1-a504562e9f32
+    OrderDto:
+      required:
+        - column_id
+      type: object
+      properties:
+        direction:
+          type: string
+          example: asc
+          enum:
+            - asc
+            - desc
+        column_id:
+          type: string
+          format: uuid
+          example: e891ba86-0258-41a6-a8d9-ff58bc10b618
+    SubsetDto:
+      required:
+        - columns
+        - table_id
+      type: object
+      properties:
+        columns:
+          type: array
+          example:
+            - e891ba86-0258-41a6-a8d9-ff58bc10b618
+          items:
+            type: string
+            format: uuid
+        filter:
+          type: array
+          items:
+            $ref: '#/components/schemas/FilterDto'
+        order:
+          type: array
+          items:
+            $ref: '#/components/schemas/OrderDto'
+        table_id:
+          type: string
+          format: uuid
+          example: f7df2a7d-4ade-4c78-97b0-7c744d0893c7
     TableHistoryDto:
       required:
         - event
@@ -5282,6 +5348,10 @@ components:
           example: '2021-03-12T15:26:21.000Z'
         event:
           type: string
+          example: INSERT
+          enum:
+            - insert
+            - delete
         total:
           type: integer
           format: int64
@@ -5299,88 +5369,6 @@ components:
               id: 1
           example:
             id: 1
-    DatabaseBriefDto:
-      required:
-        - contact
-        - id
-        - identifiers
-        - internal_name
-        - is_public
-        - is_schema_public
-        - name
-        - owner_id
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 3
-        name:
-          type: string
-          example: Air Quality
-        description:
-          type: string
-          example: Air Quality
-        identifiers:
-          type: array
-          items:
-            $ref: '#/components/schemas/IdentifierBriefDto'
-        contact:
-          $ref: '#/components/schemas/UserBriefDto'
-        internal_name:
-          type: string
-          example: air_quality
-        is_public:
-          type: boolean
-          example: true
-        is_schema_public:
-          type: boolean
-          example: true
-        owner_id:
-          type: string
-          format: uuid
-          example: 2f45ef7a-7f9b-4667-9156-152c87fe1ca5
-        preview_image:
-          type: string
-    DatabaseAccessDto:
-      required:
-        - type
-        - user
-      type: object
-      properties:
-        user:
-          $ref: '#/components/schemas/UserBriefDto'
-        type:
-          type: string
-          example: read
-          enum:
-            - read
-            - write_own
-            - write_all
-    UserUpdateDto:
-      required:
-        - language
-        - theme
-      type: object
-      properties:
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
-          type: string
-          example: Brown University
-        orcid:
-          type: string
-          example: 0000-0002-1825-0097
-        theme:
-          type: string
-          example: dark
-        language:
-          type: string
-          example: en
     UserAttributesDto:
       required:
         - language
@@ -5433,56 +5421,89 @@ components:
           example: Josiah
         family_name:
           type: string
-          example: Carberry
-    UserPasswordDto:
-      required:
-        - password
-      type: object
-      properties:
-        password:
+          example: Carberry
+    DatabaseBriefDto:
+      required:
+        - contact
+        - id
+        - identifiers
+        - internal_name
+        - is_public
+        - is_schema_public
+        - name
+        - owner_id
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
+        name:
+          type: string
+          example: Air Quality
+        description:
+          type: string
+          example: Air Quality
+        identifiers:
+          type: array
+          items:
+            $ref: '#/components/schemas/IdentifierBriefDto'
+        contact:
+          $ref: '#/components/schemas/UserBriefDto'
+        internal_name:
+          type: string
+          example: air_quality
+        is_public:
+          type: boolean
+          example: true
+        is_schema_public:
+          type: boolean
+          example: true
+        owner_id:
+          type: string
+          format: uuid
+          example: 2f45ef7a-7f9b-4667-9156-152c87fe1ca5
+        preview_image:
           type: string
-    RefreshTokenRequestDto:
+    DatabaseAccessDto:
       required:
-        - refresh_token
+        - type
+        - user
       type: object
       properties:
-        refresh_token:
+        user:
+          $ref: '#/components/schemas/UserBriefDto'
+        type:
           type: string
-          example: refresh_token
-    TokenDto:
+          example: read
+          enum:
+            - read
+            - write_own
+            - write_all
+    UserUpdateDto:
       required:
-        - access_token
-        - expires_in
-        - id_token
-        - not-before-policy
-        - refresh_expires_in
-        - refresh_token
-        - scope
-        - session_state
-        - token_type
+        - language
+        - theme
       type: object
       properties:
-        scope:
+        firstname:
           type: string
-        access_token:
+          example: Josiah
+        lastname:
           type: string
-        expires_in:
-          type: integer
-          format: int64
-        refresh_token:
+          example: Carberry
+        affiliation:
           type: string
-        refresh_expires_in:
-          type: integer
-          format: int64
-        id_token:
+          example: Brown University
+        orcid:
           type: string
-        session_state:
+          example: 0000-0002-1825-0097
+        theme:
           type: string
-        token_type:
+          example: dark
+        language:
           type: string
-        not-before-policy:
-          type: integer
-          format: int64
+          example: en
     OntologyModifyDto:
       required:
         - prefix
@@ -5511,8 +5532,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: 7c491e40-082a-47b8-b82c-51d03c520466
         uri:
           type: string
           example: 'http://www.wikidata.org/'
@@ -5525,569 +5547,253 @@ components:
         rdf:
           type: boolean
           example: false
-        uri_pattern:
-          type: string
-          example: 'http://www.wikidata.org/entity/.*'
-        sparql_endpoint:
-          type: string
-          example: 'https://query.wikidata.org/sparql'
-        rdf_path:
-          type: string
-          example: rdf/om-2.0.rdf
-    BannerMessageUpdateDto:
-      required:
-        - message
-        - type
-      type: object
-      properties:
-        type:
-          type: string
-          enum:
-            - error
-            - warning
-            - info
-        message:
-          type: string
-          example: Maintenance starts on 8am on Monday
-        link:
-          type: string
-          example: 'https://example.com'
-        link_text:
-          type: string
-          example: More
-        display_start:
-          type: string
-          format: date-time
-          example: '2021-03-12T15:26:21.000Z'
-        display_end:
-          type: string
-          format: date-time
-          example: '2021-03-12T15:26:21.000Z'
-    BannerMessageBriefDto:
-      required:
-        - message
-        - type
-      type: object
-      properties:
-        type:
-          type: string
-          enum:
-            - error
-            - warning
-            - info
-        message:
-          type: string
-          example: Maintenance starts on 8am on Monday
-        link:
-          type: string
-          example: 'https://example.com'
-        link_text:
-          type: string
-          example: More
-    ImageChangeDto:
-      required:
-        - dialect
-        - driver_class
-        - jdbc_method
-        - registry
-      type: object
-      properties:
-        registry:
-          type: string
-          example: docker.io/library
-        defaultPort:
-          maximum: 65535
-          minimum: 1024
-          type: integer
-          format: int32
-          example: 5432
-        dialect:
-          type: string
-          example: Postgres
-        driver_class:
-          type: string
-          example: org.postgresql.Driver
-        jdbc_method:
-          type: string
-          example: postgresql
-    DataTypeDto:
-      required:
-        - display_name
-        - documentation
-        - is_buildable
-        - is_quoted
-        - value
-      type: object
-      properties:
-        value:
-          type: string
-          example: time
-        documentation:
-          type: string
-          example: 'https://mariadb.com/kb/en/time/'
-        display_name:
-          type: string
-          example: TIME(fsp)
-        size_min:
-          type: integer
-          format: int32
-          example: 0
-        size_max:
-          type: integer
-          format: int32
-          example: 6
-        size_default:
-          type: integer
-          format: int32
-          example: 0
-        size_required:
-          type: boolean
-          example: false
-        d_min:
-          type: integer
-          format: int32
-        d_max:
-          type: integer
-          format: int32
-        d_default:
-          type: integer
-          format: int32
-        d_required:
-          type: boolean
-        data_hint:
-          type: string
-          example: 'e.g. HH:MM:SS, HH:MM, HHMMSS, H:M:S'
-        type_hint:
-          type: string
-          example: 'fsp=microsecond precision, min. 0, max. 6'
-        is_quoted:
-          type: boolean
-          description: frontend needs to quote this data type
-          example: false
-        is_buildable:
-          type: boolean
-          description: frontend can build this data type
-          example: true
-    ImageDto:
-      required:
-        - data_types
-        - default
-        - default_port
-        - dialect
-        - driver_class
-        - id
-        - jdbc_method
-        - name
-        - operators
-        - registry
-        - version
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
-        registry:
-          type: string
-          example: docker.io/library
-        name:
-          type: string
-          example: mariadb
-        version:
-          type: string
-          example: '10.5'
-        dialect:
-          type: string
-          example: org.hibernate.dialect.MariaDBDialect
-        operators:
-          type: array
-          items:
-            $ref: '#/components/schemas/OperatorDto'
-        driver_class:
-          type: string
-          example: org.mariadb.jdbc.Driver
-        jdbc_method:
-          type: string
-          example: mariadb
-        default:
-          type: boolean
-          example: false
-        default_port:
-          type: integer
-          format: int32
-          example: 3306
-        data_types:
-          type: array
-          items:
-            $ref: '#/components/schemas/DataTypeDto'
-    OperatorDto:
-      required:
-        - display_name
-        - documentation
-        - value
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-        value:
+        uri_pattern:
           type: string
-          example: XOR
-        documentation:
+          example: 'http://www.wikidata.org/entity/.*'
+        sparql_endpoint:
           type: string
-          example: 'https://mariadb.com/kb/en/xor/'
-        display_name:
+          example: 'https://query.wikidata.org/sparql'
+        rdf_path:
           type: string
-          example: XOR
-    IdentifierSaveDto:
+          example: rdf/om-2.0.rdf
+    BannerMessageUpdateDto:
       required:
-        - creators
-        - database_id
-        - id
-        - publication_year
-        - publisher
-        - titles
+        - message
         - type
       type: object
       properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
         type:
           type: string
-          example: database
           enum:
-            - database
-            - subset
-            - table
-            - view
-        doi:
+            - error
+            - warning
+            - info
+        message:
           type: string
-          example: 10.1111/11111111
-        titles:
-          type: array
-          items:
-            $ref: '#/components/schemas/SaveIdentifierTitleDto'
-        descriptions:
-          type: array
-          items:
-            $ref: '#/components/schemas/SaveIdentifierDescriptionDto'
-        funders:
-          type: array
-          items:
-            $ref: '#/components/schemas/SaveIdentifierFunderDto'
-        licenses:
-          type: array
-          items:
-            $ref: '#/components/schemas/LicenseDto'
-        publisher:
+          example: Maintenance starts on 8am on Monday
+        link:
           type: string
-          example: TU Wien
-        language:
+          example: 'https://example.com'
+        link_text:
           type: string
-          enum:
-            - ab
-            - aa
-            - af
-            - ak
-            - sq
-            - am
-            - ar
-            - an
-            - hy
-            - as
-            - av
-            - ae
-            - ay
-            - az
-            - bm
-            - ba
-            - eu
-            - be
-            - bn
-            - bh
-            - bi
-            - bs
-            - br
-            - bg
-            - my
-            - ca
-            - km
-            - ch
-            - ce
-            - ny
-            - zh
-            - cu
-            - cv
-            - kw
-            - co
-            - cr
-            - hr
-            - cs
-            - da
-            - dv
-            - nl
-            - dz
-            - en
-            - eo
-            - et
-            - ee
-            - fo
-            - fj
-            - fi
-            - fr
-            - ff
-            - gd
-            - gl
-            - lg
-            - ka
-            - de
-            - ki
-            - el
-            - kl
-            - gn
-            - gu
-            - ht
-            - ha
-            - he
-            - hz
-            - hi
-            - ho
-            - hu
-            - is
-            - io
-            - ig
-            - id
-            - ia
-            - ie
-            - iu
-            - ik
-            - ga
-            - it
-            - ja
-            - jv
-            - kn
-            - kr
-            - ks
-            - kk
-            - rw
-            - kv
-            - kg
-            - ko
-            - kj
-            - ku
-            - ky
-            - lo
-            - la
-            - lv
-            - lb
-            - li
-            - ln
-            - lt
-            - lu
-            - mk
-            - mg
-            - ms
-            - ml
-            - mt
-            - gv
-            - mi
-            - mr
-            - mh
-            - ro
-            - mn
-            - na
-            - nv
-            - nd
-            - ng
-            - ne
-            - se
-            - 'no'
-            - nb
-            - nn
-            - ii
-            - oc
-            - oj
-            - or
-            - om
-            - os
-            - pi
-            - pa
-            - ps
-            - fa
-            - pl
-            - pt
-            - qu
-            - rm
-            - rn
-            - ru
-            - sm
-            - sg
-            - sa
-            - sc
-            - sr
-            - sn
-            - sd
-            - si
-            - sk
-            - sl
-            - so
-            - st
-            - nr
-            - es
-            - su
-            - sw
-            - ss
-            - sv
-            - tl
-            - ty
-            - tg
-            - ta
-            - tt
-            - te
-            - th
-            - bo
-            - ti
-            - to
-            - ts
-            - tn
-            - tr
-            - tk
-            - tw
-            - ug
-            - uk
-            - ur
-            - uz
-            - ve
-            - vi
-            - vo
-            - wa
-            - cy
-            - fy
-            - wo
-            - xh
-            - yi
-            - yo
-            - za
-            - zu
-        creators:
-          type: array
-          items:
-            $ref: '#/components/schemas/SaveIdentifierCreatorDto'
-        database_id:
+          example: More
+        display_start:
+          type: string
+          format: date-time
+          example: '2021-03-12T15:26:21.000Z'
+        display_end:
+          type: string
+          format: date-time
+          example: '2021-03-12T15:26:21.000Z'
+    BannerMessageBriefDto:
+      required:
+        - message
+        - type
+      type: object
+      properties:
+        type:
+          type: string
+          enum:
+            - error
+            - warning
+            - info
+        message:
+          type: string
+          example: Maintenance starts on 8am on Monday
+        link:
+          type: string
+          example: 'https://example.com'
+        link_text:
+          type: string
+          example: More
+    ImageChangeDto:
+      required:
+        - dialect
+        - driver_class
+        - jdbc_method
+        - registry
+      type: object
+      properties:
+        registry:
+          type: string
+          example: docker.io/library
+        defaultPort:
+          maximum: 65535
+          minimum: 1024
           type: integer
-          format: int64
-          example: 1
-        query_id:
+          format: int32
+          example: 5432
+        dialect:
+          type: string
+          example: Postgres
+        driver_class:
+          type: string
+          example: org.postgresql.Driver
+        jdbc_method:
+          type: string
+          example: postgresql
+    DataTypeDto:
+      required:
+        - display_name
+        - documentation
+        - id
+        - is_buildable
+        - is_quoted
+        - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcca
+        value:
+          type: string
+          example: time
+        documentation:
+          type: string
+          example: 'https://mariadb.com/kb/en/time/'
+        display_name:
+          type: string
+          example: TIME(fsp)
+        size_min:
           type: integer
-          format: int64
-        view_id:
+          format: int32
+          example: 0
+        size_max:
           type: integer
-          format: int64
-        table_id:
+          format: int32
+          example: 6
+        size_default:
           type: integer
-          format: int64
-        publication_day:
+          format: int32
+          example: 0
+        size_required:
+          type: boolean
+          example: false
+        d_min:
           type: integer
           format: int32
-          example: 15
-        publication_month:
+        d_max:
           type: integer
           format: int32
-          example: 12
-        publication_year:
+        d_default:
           type: integer
           format: int32
-          example: 2022
-        related_identifiers:
-          type: array
-          items:
-            $ref: '#/components/schemas/SaveRelatedIdentifierDto'
-    LicenseDto:
+        d_required:
+          type: boolean
+        data_hint:
+          type: string
+          example: 'e.g. HH:MM:SS, HH:MM, HHMMSS, H:M:S'
+        type_hint:
+          type: string
+          example: 'fsp=microsecond precision, min. 0, max. 6'
+        is_quoted:
+          type: boolean
+          description: frontend needs to quote this data type
+          example: false
+        is_buildable:
+          type: boolean
+          description: frontend can build this data type
+          example: true
+    ImageDto:
       required:
-        - identifier
-        - uri
+        - data_types
+        - default
+        - id
+        - name
+        - operators
+        - version
       type: object
       properties:
-        identifier:
+        id:
           type: string
-          example: MIT
-        uri:
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcce
+        name:
           type: string
-          example: 'https://opensource.org/licenses/MIT'
-        description:
+          example: mariadb
+        version:
           type: string
-          example: >-
-            A short and simple permissive license with conditions only requiring
-            preservation of copyright and license notices. Licensed works,
-            modifications, and larger works may be distributed under different
-            terms and without source code.
-    SaveIdentifierCreatorDto:
+          example: '10.5'
+        operators:
+          type: array
+          items:
+            $ref: '#/components/schemas/OperatorDto'
+        default:
+          type: boolean
+          example: false
+        data_types:
+          type: array
+          items:
+            $ref: '#/components/schemas/DataTypeDto'
+    OperatorDto:
       required:
-        - creator_name
+        - display_name
+        - documentation
         - id
+        - value
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
-          type: string
-          example: Wesleyan University
-        creator_name:
-          type: string
-          example: 'Carberry, Josiah'
-        name_type:
-          type: string
-          example: Personal
-          enum:
-            - Personal
-            - Organizational
-        name_identifier:
           type: string
-          example: 0000-0002-1825-0097
-        name_identifier_scheme:
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dccf
+        value:
           type: string
-          example: ORCID
-          enum:
-            - ORCID
-            - ROR
-            - ISNI
-            - GRID
-        affiliation_identifier:
+          example: XOR
+        documentation:
           type: string
-          example: 'https://ror.org/04d836q62'
-        affiliation_identifier_scheme:
+          example: 'https://mariadb.com/kb/en/xor/'
+        display_name:
           type: string
-          example: ROR
-          enum:
-            - ROR
-            - GRID
-            - ISNI
-    SaveIdentifierDescriptionDto:
+          example: XOR
+    IdentifierSaveDto:
       required:
-        - description
+        - creators
+        - database_id
         - id
+        - publication_year
+        - publisher
+        - titles
+        - type
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        description:
           type: string
-          example: 'Air quality reports at Stephansplatz, Vienna'
+          format: uuid
+          example: 68e11675-1e0f-4d24-a6d9-887ad1c4445d
+        type:
+          type: string
+          example: database
+          enum:
+            - database
+            - subset
+            - table
+            - view
+        doi:
+          type: string
+          example: 10.1111/11111111
+        titles:
+          type: array
+          items:
+            $ref: '#/components/schemas/SaveIdentifierTitleDto'
+        descriptions:
+          type: array
+          items:
+            $ref: '#/components/schemas/SaveIdentifierDescriptionDto'
+        funders:
+          type: array
+          items:
+            $ref: '#/components/schemas/SaveIdentifierFunderDto'
+        licenses:
+          type: array
+          items:
+            $ref: '#/components/schemas/LicenseDto'
+        publisher:
+          type: string
+          example: TU Wien
         language:
           type: string
-          example: en
           enum:
             - ab
             - aa
@@ -6273,63 +5979,119 @@ components:
             - yo
             - za
             - zu
-        type:
+        creators:
+          type: array
+          items:
+            $ref: '#/components/schemas/SaveIdentifierCreatorDto'
+        database_id:
           type: string
-          example: Abstract
-          enum:
-            - Abstract
-            - Methods
-            - SeriesInformation
-            - TableOfContents
-            - TechnicalInfo
-            - Other
-    SaveIdentifierFunderDto:
+          format: uuid
+        query_id:
+          type: string
+          format: uuid
+        view_id:
+          type: string
+          format: uuid
+        table_id:
+          type: string
+          format: uuid
+        publication_day:
+          type: integer
+          format: int32
+          example: 15
+        publication_month:
+          type: integer
+          format: int32
+          example: 12
+        publication_year:
+          type: integer
+          format: int32
+          example: 2022
+        related_identifiers:
+          type: array
+          items:
+            $ref: '#/components/schemas/SaveRelatedIdentifierDto'
+    LicenseDto:
       required:
-        - funder_name
+        - identifier
+        - uri
+      type: object
+      properties:
+        identifier:
+          type: string
+          example: MIT
+        uri:
+          type: string
+          example: 'https://opensource.org/licenses/MIT'
+        description:
+          type: string
+          example: >-
+            A short and simple permissive license with conditions only requiring
+            preservation of copyright and license notices. Licensed works,
+            modifications, and larger works may be distributed under different
+            terms and without source code.
+    SaveIdentifierCreatorDto:
+      required:
+        - creator_name
         - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        funder_name:
           type: string
-          example: European Commission
-        funder_identifier:
+          format: uuid
+          example: da9dd034-00a8-4517-b93d-d1b2adfee418
+        firstname:
           type: string
-          example: 'http://doi.org/10.13039/501100000780'
-        funder_identifier_type:
+          example: Josiah
+        lastname:
           type: string
-          example: Crossref Funder ID
+          example: Carberry
+        affiliation:
+          type: string
+          example: Wesleyan University
+        creator_name:
+          type: string
+          example: 'Carberry, Josiah'
+        name_type:
+          type: string
+          example: Personal
           enum:
-            - Crossref Funder ID
+            - Personal
+            - Organizational
+        name_identifier:
+          type: string
+          example: 0000-0002-1825-0097
+        name_identifier_scheme:
+          type: string
+          example: ORCID
+          enum:
+            - ORCID
             - ROR
-            - GND
             - ISNI
-            - Other
-        scheme_uri:
-          type: string
-          example: 'http://doi.org/'
-        award_number:
+            - GRID
+        affiliation_identifier:
           type: string
-          example: '824087'
-        award_title:
+          example: 'https://ror.org/04d836q62'
+        affiliation_identifier_scheme:
           type: string
-          example: EOSC-Life
-    SaveIdentifierTitleDto:
+          example: ROR
+          enum:
+            - ROR
+            - GRID
+            - ISNI
+    SaveIdentifierDescriptionDto:
       required:
+        - description
         - id
-        - title
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
-        title:
           type: string
-          example: Airquality Demonstrator
+          format: uuid
+          example: 35bd84d8-b181-43c8-b786-4d024e4f843c
+        description:
+          type: string
+          example: 'Air quality reports at Stephansplatz, Vienna'
         language:
           type: string
           example: en
@@ -6520,154 +6282,61 @@ components:
             - zu
         type:
           type: string
-          example: Subtitle
+          example: Abstract
           enum:
-            - AlternativeTitle
-            - Subtitle
-            - TranslatedTitle
+            - Abstract
+            - Methods
+            - SeriesInformation
+            - TableOfContents
+            - TechnicalInfo
             - Other
-    SaveRelatedIdentifierDto:
-      required:
-        - id
-        - relation
-        - type
-        - value
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 1
-        value:
-          type: string
-          example: 10.70124/dc4zh-9ce78
-        type:
-          type: string
-          example: DOI
-          enum:
-            - DOI
-            - URL
-            - URN
-            - ARK
-            - arXiv
-            - bibcode
-            - EAN13
-            - EISSN
-            - Handle
-            - IGSN
-            - ISBN
-            - ISTC
-            - LISSN
-            - LSID
-            - PMID
-            - PURL
-            - UPC
-            - w3id
-        relation:
-          type: string
-          example: Cites
-          enum:
-            - IsCitedBy
-            - Cites
-            - IsSupplementTo
-            - IsSupplementedBy
-            - IsContinuedBy
-            - Continues
-            - IsDescribedBy
-            - Describes
-            - HasMetadata
-            - IsMetadataFor
-            - HasVersion
-            - IsVersionOf
-            - IsNewVersionOf
-            - IsPreviousVersionOf
-            - IsPartOf
-            - HasPart
-            - IsPublishedIn
-            - IsReferencedBy
-            - References
-            - IsDocumentedBy
-            - Documents
-            - IsCompiledBy
-            - Compiles
-            - IsVariantFormOf
-            - IsOriginalFormOf
-            - IsIdenticalTo
-            - IsReviewedBy
-            - Reviews
-            - IsDerivedFrom
-            - IsSourceOf
-            - IsRequiredBy
-            - Requires
-            - IsObsoletedBy
-            - Obsoletes
-    CreatorDto:
+    SaveIdentifierFunderDto:
       required:
-        - creator_name
+        - funder_name
         - id
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 11
-        firstname:
-          type: string
-          example: Josiah
-        lastname:
-          type: string
-          example: Carberry
-        affiliation:
-          type: string
-          example: Brown University
-        creator_name:
-          type: string
-          example: 'Carberry, Josiah'
-        name_type:
-          type: string
-          example: Personal
-          enum:
-            - Personal
-            - Organizational
-        name_identifier:
-          type: string
-          example: 0000-0002-1825-0097
-        name_identifier_scheme:
           type: string
-          example: ORCID
-          enum:
-            - ORCID
-            - ROR
-            - ISNI
-            - GRID
-        name_identifier_scheme_uri:
+          format: uuid
+          example: 1c6b9212-a315-44b9-946c-3682a7a0e517
+        funder_name:
           type: string
-          example: 'https://orcid.org/'
-        affiliation_identifier:
+          example: European Commission
+        funder_identifier:
           type: string
-          example: 'https://ror.org/05gq02987'
-        affiliation_identifier_scheme:
+          example: 'http://doi.org/10.13039/501100000780'
+        funder_identifier_type:
           type: string
-          example: ROR
+          example: Crossref Funder ID
           enum:
+            - Crossref Funder ID
             - ROR
-            - GRID
+            - GND
             - ISNI
-        affiliation_identifier_scheme_uri:
+            - Other
+        scheme_uri:
           type: string
-          example: 'https://ror.org/'
-    IdentifierDescriptionDto:
+          example: 'http://doi.org/'
+        award_number:
+          type: string
+          example: '824087'
+        award_title:
+          type: string
+          example: EOSC-Life
+    SaveIdentifierTitleDto:
       required:
         - id
+        - title
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
-        description:
           type: string
-          example: 'Air quality reports at Stephansplatz, Vienna'
+          format: uuid
+          example: 2af9f40e-eaf5-4ea1-861a-1a696587bf29
+        title:
+          type: string
+          example: Airquality Demonstrator
         language:
           type: string
           example: en
@@ -6858,14 +6527,142 @@ components:
             - zu
         type:
           type: string
-          example: Abstract
+          example: Subtitle
           enum:
-            - Abstract
-            - Methods
-            - SeriesInformation
-            - TableOfContents
-            - TechnicalInfo
+            - AlternativeTitle
+            - Subtitle
+            - TranslatedTitle
             - Other
+    SaveRelatedIdentifierDto:
+      required:
+        - id
+        - relation
+        - type
+        - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 5bb272c7-7421-4f74-83ac-0486812d0f44
+        value:
+          type: string
+          example: 10.70124/dc4zh-9ce78
+        type:
+          type: string
+          example: DOI
+          enum:
+            - DOI
+            - URL
+            - URN
+            - ARK
+            - arXiv
+            - bibcode
+            - EAN13
+            - EISSN
+            - Handle
+            - IGSN
+            - ISBN
+            - ISTC
+            - LISSN
+            - LSID
+            - PMID
+            - PURL
+            - UPC
+            - w3id
+        relation:
+          type: string
+          example: Cites
+          enum:
+            - IsCitedBy
+            - Cites
+            - IsSupplementTo
+            - IsSupplementedBy
+            - IsContinuedBy
+            - Continues
+            - IsDescribedBy
+            - Describes
+            - HasMetadata
+            - IsMetadataFor
+            - HasVersion
+            - IsVersionOf
+            - IsNewVersionOf
+            - IsPreviousVersionOf
+            - IsPartOf
+            - HasPart
+            - IsPublishedIn
+            - IsReferencedBy
+            - References
+            - IsDocumentedBy
+            - Documents
+            - IsCompiledBy
+            - Compiles
+            - IsVariantFormOf
+            - IsOriginalFormOf
+            - IsIdenticalTo
+            - IsReviewedBy
+            - Reviews
+            - IsDerivedFrom
+            - IsSourceOf
+            - IsRequiredBy
+            - Requires
+            - IsObsoletedBy
+            - Obsoletes
+    CreatorDto:
+      required:
+        - creator_name
+        - id
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: e41f94a6-2b94-4a12-ac0e-678684e1c070
+        firstname:
+          type: string
+          example: Josiah
+        lastname:
+          type: string
+          example: Carberry
+        affiliation:
+          type: string
+          example: Brown University
+        creator_name:
+          type: string
+          example: 'Carberry, Josiah'
+        name_type:
+          type: string
+          example: Personal
+          enum:
+            - Personal
+            - Organizational
+        name_identifier:
+          type: string
+          example: 0000-0002-1825-0097
+        name_identifier_scheme:
+          type: string
+          example: ORCID
+          enum:
+            - ORCID
+            - ROR
+            - ISNI
+            - GRID
+        name_identifier_scheme_uri:
+          type: string
+          example: 'https://orcid.org/'
+        affiliation_identifier:
+          type: string
+          example: 'https://ror.org/05gq02987'
+        affiliation_identifier_scheme:
+          type: string
+          example: ROR
+          enum:
+            - ROR
+            - GRID
+            - ISNI
+        affiliation_identifier_scheme_uri:
+          type: string
+          example: 'https://ror.org/'
     IdentifierDto:
       required:
         - creators
@@ -6887,9 +6684,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: b97cd56b-66ca-4354-9e6c-f47210cfaaec
         type:
           type: string
           example: database
@@ -7129,21 +6926,17 @@ components:
             - draft
             - published
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         query_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
         query_normalized:
           type: string
           example: >-
@@ -7182,9 +6975,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 39693413-e0ce-46da-ad5e-029c0556d439
         funder_name:
           type: string
           example: European Commission
@@ -7218,9 +7011,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: ce9d11f0-60a2-448d-a3e4-44719a443e8a
         value:
           type: string
           example: 10.70124/dc4zh-9ce78
@@ -7319,9 +7112,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 787439d0-e85e-400c-a7e6-996a023bfad9
         name:
           type: string
           example: Air Quality
@@ -7329,9 +7122,9 @@ components:
           type: string
           example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 2b5b2b03-fdd0-40d6-afe0-e5d02fd839e4
         internal_name:
           type: string
           example: air_quality
@@ -7382,9 +7175,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: 41ed10e0-687b-4e18-8521-810f5cffbce1
         name:
           type: string
           example: Air Quality
@@ -7392,9 +7185,9 @@ components:
           type: string
           example: Air Quality in Austria
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: a8fec026-dfaf-4b1d-8f6c-f01720d91705
         internal_name:
           type: string
           example: air_quality
@@ -7431,9 +7224,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: a453e444-e00d-41ca-902c-11e9c54b39f1
         name:
           maxLength: 64
           minLength: 0
@@ -7467,26 +7260,20 @@ components:
           example: Column comment
         enums:
           type: array
-          example:
-            - val1
           items:
-            type: string
-            example: '["val1"]'
+            $ref: '#/components/schemas/EnumDto'
         sets:
           type: array
-          example:
-            - val1
           items:
-            type: string
-            example: '["val1"]'
+            $ref: '#/components/schemas/SetDto'
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 911f9052-c58c-4e1c-b3f2-66af2107be16
         table_id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: bfffa915-a547-4466-9c65-ddc0d38fdb08
         ord:
           type: integer
           format: int32
@@ -7569,9 +7356,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 23
+          type: string
+          format: uuid
+          example: 8cabc011-4bdf-44d4-9d33-b2648e2ddbf1
         uri:
           type: string
           example: 'http://www.wikidata.org/entity/Q202444'
@@ -7580,9 +7367,35 @@ components:
           example: given name
         description:
           type: string
-          example: >-
-            name typically used to differentiate people from the same family,
-            clan, or other social group who have a common last name
+          example: >-
+            name typically used to differentiate people from the same family,
+            clan, or other social group who have a common last name
+    EnumDto:
+      required:
+        - id
+        - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 5343bb3d-14d3-4eb7-a86f-b8fc553cb315
+        value:
+          type: string
+          example: '3'
+    SetDto:
+      required:
+        - id
+        - value
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 7eb4eded-bacc-4a91-84db-a9ae6ddafda7
+        value:
+          type: string
+          example: '3'
     UnitBriefDto:
       required:
         - id
@@ -7590,9 +7403,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 34
+          type: string
+          format: uuid
+          example: ba1935e8-6817-488f-af0a-f54389af9000
         uri:
           type: string
           example: 'http://www.wikidata.org/entity/Q1422583'
@@ -7627,33 +7440,6 @@ components:
             - read
             - write_own
             - write_all
-    CreateUserDto:
-      required:
-        - email
-        - password
-        - username
-      type: object
-      properties:
-        username:
-          pattern: '^[a-z0-9]{3,}$'
-          type: string
-          example: user
-        email:
-          type: string
-          example: user@example.com
-        password:
-          type: string
-    LoginRequestDto:
-      required:
-        - password
-        - username
-      type: object
-      properties:
-        username:
-          type: string
-          example: user
-        password:
-          type: string
     OntologyCreateDto:
       required:
         - prefix
@@ -7964,18 +7750,18 @@ components:
           items:
             $ref: '#/components/schemas/SaveIdentifierCreatorDto'
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: d002e8d5-8db4-4ff7-ab3a-bc3f52d9ec44
         query_id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
         view_id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
         table_id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
         publication_day:
           type: integer
           format: int32
@@ -8004,9 +7790,9 @@ components:
           type: string
           example: Air Quality
         container_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 0888e108-d521-46e2-9d3e-82099185305b
         is_public:
           type: boolean
           example: true
@@ -8027,8 +7813,7 @@ components:
           type: string
           example: Air Quality
         query:
-          type: string
-          example: SELECT `id` FROM `air_quality`
+          $ref: '#/components/schemas/SubsetDto'
         is_public:
           type: boolean
           example: true
@@ -8044,16 +7829,24 @@ components:
       properties:
         columns:
           type: array
+          example:
+            - id
           items:
             type: string
+            example: '["id"]'
         referenced_table:
           type: string
+          example: sensor
         referenced_columns:
           type: array
+          example:
+            - other_id
           items:
             type: string
+            example: '["other_id"]'
         on_update:
           type: string
+          example: cascade
           enum:
             - restrict
             - cascade
@@ -8062,6 +7855,7 @@ components:
             - set_default
         on_delete:
           type: string
+          example: cascade
           enum:
             - restrict
             - cascade
@@ -8080,7 +7874,7 @@ components:
           example: Date
         type:
           type: string
-          example: string
+          example: varchar
           enum:
             - char
             - varchar
@@ -8233,10 +8027,10 @@ components:
           format: int64
           example: 50
         image_id:
-          type: integer
+          type: string
           description: Image ID
-          format: int64
-          example: 1
+          format: uuid
+          example: 2360f3c4-85e0-4fac-a7c6-73b296b9dde2
         ui_host:
           type: string
           example: example.com
@@ -8259,23 +8053,15 @@ components:
         - image
         - internal_name
         - name
-        - quota
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 7ddb7e87-b965-43a2-9a24-4fa406d998f4
         name:
           type: string
           example: Air Quality
-        host:
-          type: string
-          example: data-db
-        port:
-          type: integer
-          format: int32
-          example: 3306
         image:
           $ref: '#/components/schemas/ImageDto'
         quota:
@@ -8298,13 +8084,6 @@ components:
         internal_name:
           type: string
           example: air_quality
-        ui_host:
-          type: string
-          example: example.com
-        ui_port:
-          type: integer
-          format: int32
-          example: 3306
     ColumnBriefDto:
       required:
         - database_id
@@ -8316,9 +8095,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: a453e444-e00d-41ca-902c-11e9c54b39f1
         name:
           maxLength: 64
           minLength: 0
@@ -8328,13 +8107,13 @@ components:
           type: string
           example: firstname
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: 911f9052-c58c-4e1c-b3f2-66af2107be16
         table_id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: bfffa915-a547-4466-9c65-ddc0d38fdb08
         internal_name:
           maxLength: 64
           minLength: 0
@@ -8382,8 +8161,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: ba1935e8-6817-488f-af0a-f54389af9000
         uri:
           type: string
         name:
@@ -8404,8 +8184,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: 7c491e40-082a-47b8-b82c-51d03c520466
         uri:
           type: string
           example: 'http://www.wikidata.org/'
@@ -8465,10 +8246,12 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: ae3f795b-a3da-4ebe-bdc4-21a8ce631e6f
         type:
           type: string
+          example: WARNING
           enum:
             - error
             - warning
@@ -8494,24 +8277,20 @@ components:
       required:
         - default
         - id
-        - jdbc_method
         - name
         - version
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 5
+          type: string
+          format: uuid
+          example: 816f55d5-1098-4f60-a4af-c8121c04dcce
         name:
           type: string
           example: mariadb
         version:
           type: string
           example: '10.5'
-        jdbc_method:
-          type: string
-          example: mariadb
         default:
           type: boolean
           example: false
@@ -8577,6 +8356,153 @@ components:
           type: string
         '@type':
           type: string
+    ViewColumnDto:
+      required:
+        - database_id
+        - id
+        - internal_name
+        - is_null_allowed
+        - name
+        - ord
+        - type
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 6aec3a91-2e0b-4e92-a16a-9c3c5e892da1
+        name:
+          maxLength: 64
+          minLength: 0
+          type: string
+          example: Given Name
+        size:
+          type: integer
+          format: int64
+          example: 255
+        d:
+          type: integer
+          format: int64
+          example: 0
+        description:
+          maxLength: 2048
+          minLength: 0
+          type: string
+          example: Column comment
+        database_id:
+          type: string
+          format: uuid
+          example: 2b5b2b03-fdd0-40d6-afe0-e5d02fd839e4
+        ord:
+          type: integer
+          format: int32
+          example: 0
+        internal_name:
+          maxLength: 64
+          minLength: 0
+          type: string
+          example: given_name
+        index_length:
+          type: integer
+          format: int64
+          example: 255
+        length:
+          type: integer
+          format: int64
+          example: 255
+        type:
+          type: string
+          example: varchar
+          enum:
+            - char
+            - varchar
+            - binary
+            - varbinary
+            - tinyblob
+            - tinytext
+            - text
+            - blob
+            - mediumtext
+            - mediumblob
+            - longtext
+            - longblob
+            - enum
+            - set
+            - serial
+            - bit
+            - tinyint
+            - bool
+            - smallint
+            - mediumint
+            - int
+            - bigint
+            - float
+            - double
+            - decimal
+            - date
+            - datetime
+            - timestamp
+            - time
+            - year
+        is_null_allowed:
+          type: boolean
+          example: false
+    ViewDto:
+      required:
+        - columns
+        - database_id
+        - id
+        - identifiers
+        - internal_name
+        - name
+        - owner
+        - query
+        - query_hash
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+          example: 787439d0-e85e-400c-a7e6-996a023bfad9
+        name:
+          type: string
+          example: Air Quality
+        identifiers:
+          type: array
+          items:
+            $ref: '#/components/schemas/IdentifierDto'
+        query:
+          type: string
+          example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
+        owner:
+          $ref: '#/components/schemas/UserBriefDto'
+        columns:
+          type: array
+          items:
+            $ref: '#/components/schemas/ViewColumnDto'
+        last_retrieved:
+          type: string
+          format: date-time
+        database_id:
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
+        internal_name:
+          type: string
+          example: air_quality
+        is_public:
+          type: boolean
+          example: true
+        is_schema_public:
+          type: boolean
+          example: true
+        initial_view:
+          type: boolean
+          description: True if it is the default view for the database
+          example: true
+        query_hash:
+          type: string
+          example: 7de03e818900b6ea6d58ad0306d4a741d658c6df3d1964e89ed2395d8c7e7916
     ConstraintsDto:
       type: object
       properties:
@@ -8601,86 +8527,13 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/PrimaryKeyDto'
-    DatabaseDto:
-      required:
-        - accesses
-        - contact
-        - exchange_name
-        - id
-        - identifiers
-        - internal_name
-        - is_public
-        - is_schema_public
-        - name
-        - owner
-        - subsets
-        - tables
-        - views
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 3
-        name:
-          type: string
-          example: Air Quality
-        description:
-          type: string
-          example: Air Quality
-        tables:
-          type: array
-          items:
-            $ref: '#/components/schemas/TableDto'
-        views:
-          type: array
-          items:
-            $ref: '#/components/schemas/ViewDto'
-        container:
-          $ref: '#/components/schemas/ContainerDto'
-        accesses:
-          type: array
-          items:
-            $ref: '#/components/schemas/DatabaseAccessDto'
-        identifiers:
-          type: array
-          items:
-            $ref: '#/components/schemas/IdentifierDto'
-        subsets:
-          type: array
-          items:
-            $ref: '#/components/schemas/IdentifierDto'
-        contact:
-          $ref: '#/components/schemas/UserBriefDto'
-        owner:
-          $ref: '#/components/schemas/UserBriefDto'
-        last_retrieved:
-          type: string
-          format: date-time
-        exchange_name:
-          type: string
-          example: dbrepo
-        exchange_type:
-          type: string
-          example: topic
-        internal_name:
-          type: string
-          example: air_quality
-        is_public:
-          type: boolean
-          example: true
-        is_schema_public:
-          type: boolean
-          example: true
-        preview_image:
-          type: string
     ForeignKeyBriefDto:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
     ForeignKeyDto:
       required:
         - name
@@ -8690,9 +8543,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
         name:
           type: string
           example: fk_name
@@ -8730,9 +8583,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: f2b740ec-0b13-4d07-88a9-529d354bba6a
         column:
           $ref: '#/components/schemas/ColumnBriefDto'
         foreign_key:
@@ -8746,9 +8599,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 8
+          type: string
+          format: uuid
+          example: d984f9d7-e8a7-4b81-b59a-862db1871f18
         table:
           $ref: '#/components/schemas/TableBriefDto'
         column:
@@ -8770,9 +8623,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 3
+          type: string
+          format: uuid
+          example: d346f844-b84c-490f-9aec-725a2dc8f820
         name:
           type: string
           example: Air Quality
@@ -8794,17 +8647,15 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/ColumnDto'
-        database:
-          $ref: '#/components/schemas/DatabaseDto'
         constraints:
           $ref: '#/components/schemas/ConstraintsDto'
         last_retrieved:
           type: string
           format: date-time
         database_id:
-          type: integer
-          format: int64
-          example: 2
+          type: string
+          format: uuid
+          example: fc29f89c-86a8-4020-9e36-4d954736c6cc
         internal_name:
           type: string
           example: air_quality
@@ -8854,9 +8705,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 5
+          type: string
+          format: uuid
+          example: d984f9d7-e8a7-4b81-b59a-862db1871f13
         name:
           type: string
           example: uk_name
@@ -8866,155 +8717,6 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/ColumnBriefDto'
-    ViewColumnDto:
-      required:
-        - database_id
-        - id
-        - internal_name
-        - is_null_allowed
-        - name
-        - ord
-        - type
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 12
-        name:
-          maxLength: 64
-          minLength: 0
-          type: string
-          example: Given Name
-        size:
-          type: integer
-          format: int64
-          example: 255
-        d:
-          type: integer
-          format: int64
-          example: 0
-        description:
-          maxLength: 2048
-          minLength: 0
-          type: string
-          example: Column comment
-        database_id:
-          type: integer
-          format: int64
-          example: 1
-        ord:
-          type: integer
-          format: int32
-          example: 0
-        internal_name:
-          maxLength: 64
-          minLength: 0
-          type: string
-          example: given_name
-        index_length:
-          type: integer
-          format: int64
-          example: 255
-        length:
-          type: integer
-          format: int64
-          example: 255
-        type:
-          type: string
-          example: varchar
-          enum:
-            - char
-            - varchar
-            - binary
-            - varbinary
-            - tinyblob
-            - tinytext
-            - text
-            - blob
-            - mediumtext
-            - mediumblob
-            - longtext
-            - longblob
-            - enum
-            - set
-            - serial
-            - bit
-            - tinyint
-            - bool
-            - smallint
-            - mediumint
-            - int
-            - bigint
-            - float
-            - double
-            - decimal
-            - date
-            - datetime
-            - timestamp
-            - time
-            - year
-        is_null_allowed:
-          type: boolean
-          example: false
-    ViewDto:
-      required:
-        - columns
-        - database_id
-        - id
-        - identifiers
-        - internal_name
-        - name
-        - owner
-        - query
-        - query_hash
-      type: object
-      properties:
-        id:
-          type: integer
-          format: int64
-          example: 4
-        name:
-          type: string
-          example: Air Quality
-        identifiers:
-          type: array
-          items:
-            $ref: '#/components/schemas/IdentifierDto'
-        query:
-          type: string
-          example: SELECT `id` FROM `air_quality` ORDER BY `value` DESC
-        database:
-          $ref: '#/components/schemas/DatabaseDto'
-        owner:
-          $ref: '#/components/schemas/UserBriefDto'
-        columns:
-          type: array
-          items:
-            $ref: '#/components/schemas/ViewColumnDto'
-        last_retrieved:
-          type: string
-          format: date-time
-        database_id:
-          type: integer
-          format: int64
-          example: 1
-        internal_name:
-          type: string
-          example: air_quality
-        is_public:
-          type: boolean
-          example: true
-        is_schema_public:
-          type: boolean
-          example: true
-        initial_view:
-          type: boolean
-          description: True if it is the default view for the database
-          example: true
-        query_hash:
-          type: string
-          example: 7de03e818900b6ea6d58ad0306d4a741d658c6df3d1964e89ed2395d8c7e7916
     TableColumnEntityDto:
       required:
         - column_id
@@ -9033,17 +8735,17 @@ components:
           type: string
           example: open source semantic web framework for Java
         database_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 475b4107-a64d-4495-a7ef-3cb0dadd4804
         table_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 9a9208af-90ea-4382-9a11-0c8f6d89bd1f
         column_id:
-          type: integer
-          format: int64
-          example: 1
+          type: string
+          format: uuid
+          example: 297860e3-3b29-451c-ae8a-a85ed5941018
     ContainerBriefDto:
       required:
         - count
@@ -9056,9 +8758,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
-          example: 4
+          type: string
+          format: uuid
+          example: 7ddb7e87-b965-43a2-9a24-4fa406d998f4
         hash:
           type: string
           example: f829dd8a884182d0da846f365dee1221fd16610a14c81b8f9f295ff162749e50
@@ -9086,8 +8788,9 @@ components:
       type: object
       properties:
         id:
-          type: integer
-          format: int64
+          type: string
+          format: uuid
+          example: 8cabc011-4bdf-44d4-9d33-b2648e2ddbf1
         uri:
           type: string
         name:
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3fea2c60f0b9d591f5a89736eaaafbc051810b7d..f61bd139cdddfa811d60282d81dc2209fdada312 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -285,13 +285,6 @@ test-data-service:
       junit: ./dbrepo-data-service/rest-service/target/surefire-reports/TEST-*.xml
   coverage: '/Total.*?([0-9]{1,3})%/'
 
-test-upload-service:
-  image: maven:3-openjdk-${JAVA_VERSION}
-  stage: test
-  script:
-    - "mvn -f ./dbrepo-metadata-service/pom.xml clean install $MAVEN_OPTS -DskipTests"
-    - "mvn -f ./dbrepo-upload-service/pom.xml clean test $MAVEN_OPTS"
-
 test-analyse-service:
   image: docker.io/python:${PYTHON_VERSION}-alpine${ALPINE_VERSION}
   stage: test
diff --git a/dbrepo-analyse-service/Pipfile.lock b/dbrepo-analyse-service/Pipfile.lock
index d600643542c4764ae750491e59e0fd8382a1ace7..9e59a2fef8b9ff3d5c28749b242c8c9c331936d3 100644
--- a/dbrepo-analyse-service/Pipfile.lock
+++ b/dbrepo-analyse-service/Pipfile.lock
@@ -26,90 +26,90 @@
         },
         "aiohttp": {
             "hashes": [
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+                "sha256:f81cba651db8795f688c589dd11a4fbb834f2e59bbf9bb50908be36e416dc760",
+                "sha256:fa1fb1b61881c8405829c50e9cc5c875bfdbf685edf57a76817dfb50643e4a1a",
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+                "sha256:fe7065e2215e4bba63dc00db9ae654c1ba3950a5fff691475a32f511142fcddb"
             ],
             "markers": "python_version >= '3.9'",
-            "version": "==3.11.12"
+            "version": "==3.11.13"
         },
         "aiosignal": {
             "hashes": [
@@ -180,20 +180,20 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:777ec08a6fe0ad77fa0607b431542c51d2d2e4145fecd512bee9f383ee4184f2",
-                "sha256:c9055fe6a33f79c43053c06db432092cfcf88f4b4181950f5ca8f2f0cb6abb87"
+                "sha256:024c37c2f85f4b907f5fc817d0db6fda7fd6ab3c6148ee4ed35fe7cecdf7db0c",
+                "sha256:1bbf8bbacb3932956b7020d9a2c49d72c64e21bae9397ba6d3aadffab5e192eb"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==1.36.24"
+            "version": "==1.37.4"
         },
         "botocore": {
             "hashes": [
-                "sha256:7d35ba92ccbed7aa7e1563b12bb339bde612d5f845c89bfdd79a6db8c26b9f2e",
-                "sha256:b8b2ad60e6545aaef3a40163793c39555fcfd67fb081a38695018026c4f4db25"
+                "sha256:7e15cd487617440e9eac3144044b6a2bd833d7f3e2bed6a2865693cc11489cc3",
+                "sha256:89130998c82d53f875a42646b692da507c9871b580fd1aea0f861bf9da36e41a"
             ],
             "markers": "python_version >= '3.8'",
-            "version": "==1.36.24"
+            "version": "==1.37.4"
         },
         "certifi": {
             "hashes": [
@@ -273,7 +273,7 @@
                 "sha256:f7f5baafcc48261359e14bcd6d9bff6d4b28d9103847c9e136694cb0501aef87",
                 "sha256:fc48c783f9c87e60831201f2cce7f3b2e4846bf4d8728eabe54d60700b318a0b"
             ],
-            "markers": "platform_python_implementation != 'PyPy'",
+            "markers": "python_version >= '3.8'",
             "version": "==1.17.1"
         },
         "charset-normalizer": {
@@ -384,44 +384,48 @@
         },
         "cryptography": {
             "hashes": [
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+                "sha256:9eb9d22b0a5d8fd9925a7764a054dca914000607dff201a24c791ff5c799e1fa",
+                "sha256:af4ff3e388f2fa7bff9f7f2b31b87d5651c45731d3e8cfa0944be43dff5cfbdb",
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+                "sha256:c505d61b6176aaf982c5717ce04e87da5abc9a36a5b39ac03905c4aafe8de7aa",
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+                "sha256:c7362add18b416b69d58c910caa217f980c5ef39b23a38a0880dfd87bdf8cd23",
+                "sha256:d03806036b4f89e3b13b6218fefea8d5312e450935b1a2d55f0524e2ed7c59d9",
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+                "sha256:d1c3572526997b36f245a96a2b1713bf79ce99b271bbcf084beb6b9b075f29ea",
+                "sha256:efcfe97d1b3c79e486554efddeb8f6f53a4cdd4cf6086642784fa31fc384e1d7",
+                "sha256:f514ef4cd14bb6fb484b4a60203e912cfcb64f2ab139e88c2274511514bf7308"
             ],
             "markers": "python_version >= '3.7' and python_full_version not in '3.9.0, 3.9.1'",
-            "version": "==44.0.1"
+            "version": "==44.0.2"
         },
         "dbrepo": {
             "hashes": [
-                "sha256:779e7ee84ae91131e16100fee7143013b4c231dcd3990d418d024ff76af271e9"
+                "sha256:7ba35243c4ead72be2bf2a2d00a3fbbae4a9c7dabb872cca8ed1b1ce77720b5d"
             ],
             "path": "./lib/dbrepo-1.7.0.tar.gz"
         },
@@ -458,11 +462,12 @@
         },
         "flask-cors": {
             "hashes": [
-                "sha256:5aadb4b950c4e93745034594d9f3ea6591f734bb3662e16e255ffbf5e89c88ef",
-                "sha256:b9e307d082a9261c100d8fb0ba909eec6a228ed1b60a8315fd85f783d61910bc"
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             ],
             "index": "pypi",
-            "version": "==5.0.0"
+            "markers": "python_version >= '3.9' and python_version < '4.0'",
+            "version": "==5.0.1"
         },
         "flask-httpauth": {
             "hashes": [
@@ -1105,91 +1110,107 @@
         },
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@@ -1453,128 +1474,128 @@
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             ],
             "markers": "python_version >= '3.9'",
-            "version": "==0.22.3"
+            "version": "==0.23.1"
         },
         "s3transfer": {
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-                "sha256:be6ecb39fadd986ef1701097771f87e4d2f821f27f6071c872143884d2950fbc"
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             ],
             "markers": "python_version >= '3.8'",
-            "version": "==0.11.2"
+            "version": "==0.11.3"
         },
         "setuptools": {
             "hashes": [
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+                "sha256:558e47c15f1811c1fa7adbd0096669bf76c1d3f433f58324df69f3f5ecac4e8f"
             ],
             "markers": "python_version >= '3.9'",
-            "version": "==75.8.0"
+            "version": "==75.8.2"
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         "six": {
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@@ -1886,7 +1907,7 @@
                 "sha256:f7f5baafcc48261359e14bcd6d9bff6d4b28d9103847c9e136694cb0501aef87",
                 "sha256:fc48c783f9c87e60831201f2cce7f3b2e4846bf4d8728eabe54d60700b318a0b"
             ],
-            "markers": "platform_python_implementation != 'PyPy'",
+            "markers": "python_version >= '3.8'",
             "version": "==1.17.1"
         },
         "charset-normalizer": {
@@ -2169,12 +2190,12 @@
         },
         "pytest": {
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-                "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"
+                "sha256:c69214aa47deac29fad6c2a4f590b9c4a9fdb16a403176fe154b79c0b4d4d820",
+                "sha256:f4efe70cc14e511565ac476b57c279e12a855b11f48f212af1080ef2263d3845"
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             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==8.3.4"
+            "version": "==8.3.5"
         },
         "python-dateutil": {
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diff --git a/dbrepo-analyse-service/lib/dbrepo-1.7.0-py3-none-any.whl b/dbrepo-analyse-service/lib/dbrepo-1.7.0-py3-none-any.whl
index f75ec9ba7a7a4ad6c2897e38abdae20c815f56c7..385c9e224a31ae8811c03908303ea42fc2374d0a 100644
Binary files a/dbrepo-analyse-service/lib/dbrepo-1.7.0-py3-none-any.whl and b/dbrepo-analyse-service/lib/dbrepo-1.7.0-py3-none-any.whl differ
diff --git a/dbrepo-analyse-service/lib/dbrepo-1.7.0.tar.gz b/dbrepo-analyse-service/lib/dbrepo-1.7.0.tar.gz
index be1dcfe68165001dbeacd670709955723a01e323..823a773ca48627ae548e2e0448bef1f5a224b3d8 100644
Binary files a/dbrepo-analyse-service/lib/dbrepo-1.7.0.tar.gz and b/dbrepo-analyse-service/lib/dbrepo-1.7.0.tar.gz differ
diff --git a/dbrepo-auth-service/listeners/target/create-event-listener.jar b/dbrepo-auth-service/listeners/target/create-event-listener.jar
index 7072823dcbcc2d91dab2624b91f1e47fad47dbff..1d72200c19c7b9fb124773e3ffc0249d1b535e2f 100644
Binary files a/dbrepo-auth-service/listeners/target/create-event-listener.jar and b/dbrepo-auth-service/listeners/target/create-event-listener.jar differ
diff --git a/dbrepo-data-service/pom.xml b/dbrepo-data-service/pom.xml
index 697e9ece1b5e0fda90a8a10ddfcb551736c8f109..35784c7d1f3167925a43cdab5104ab676189c950 100644
--- a/dbrepo-data-service/pom.xml
+++ b/dbrepo-data-service/pom.xml
@@ -8,6 +8,11 @@
         <version>3.3.5</version>
     </parent>
 
+    <organization>
+        <name>TU Wien</name>
+        <url>https://www.tuwien.ac.at</url>
+    </organization>
+
     <groupId>at.tuwien</groupId>
     <artifactId>dbrepo-data-service</artifactId>
     <name>dbrepo-data-service</name>
@@ -54,14 +59,37 @@
         <minio.version>8.5.7</minio.version>
         <guava.version>33.3.0-jre</guava.version>
         <spark.version>4.0.0-preview2</spark.version>
+        <keycloak.version>26.0.4</keycloak.version>
         <scala.version>2.13</scala.version>
         <antlr-runtime.version>3.5.2</antlr-runtime.version>
         <micrometer.version>1.10.0</micrometer.version>
         <!-- see https://github.com/apache/spark/blob/cde8e4a82e20a363861f451ebd5138efb3194ab8/pom.xml -->
         <hadoop.version>3.4.0</hadoop.version>
         <jakarta-servlet.version>5.0.0</jakarta-servlet.version>
-        <sonar.coverage.jacoco.xmlReportPaths>./report/target/site/jacoco-aggregate/jacoco.xml
+        <sonar.coverage.jacoco.xmlReportPaths>
+            ./report/target/site/jacoco-aggregate/jacoco.xml
         </sonar.coverage.jacoco.xmlReportPaths>
+        <CodeCacheSize>128m</CodeCacheSize>
+        <extraJavaTestArgs>
+            -XX:+IgnoreUnrecognizedVMOptions
+            --add-modules=jdk.incubator.vector
+            --add-opens=java.base/java.lang=ALL-UNNAMED
+            --add-opens=java.base/java.lang.invoke=ALL-UNNAMED
+            --add-opens=java.base/java.lang.reflect=ALL-UNNAMED
+            --add-opens=java.base/java.io=ALL-UNNAMED
+            --add-opens=java.base/java.net=ALL-UNNAMED
+            --add-opens=java.base/java.nio=ALL-UNNAMED
+            --add-opens=java.base/java.util=ALL-UNNAMED
+            --add-opens=java.base/java.util.concurrent=ALL-UNNAMED
+            --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED
+            --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED
+            --add-opens=java.base/sun.nio.ch=ALL-UNNAMED
+            --add-opens=java.base/sun.nio.cs=ALL-UNNAMED
+            --add-opens=java.base/sun.security.action=ALL-UNNAMED
+            --add-opens=java.base/sun.util.calendar=ALL-UNNAMED
+            -Djdk.reflect.useDirectMethodHandle=false
+            -Dio.netty.tryReflectionSetAccessible=true
+        </extraJavaTestArgs>
     </properties>
 
     <dependencies>
@@ -208,6 +236,22 @@
             <artifactId>commons-validator</artifactId>
             <version>${commons-validator.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.jooq</groupId>
+            <artifactId>jooq</artifactId>
+            <version>${jooq.version}</version>
+        </dependency>
+        <!-- Authentication -->
+        <dependency>
+            <groupId>org.keycloak</groupId>
+            <artifactId>keycloak-common</artifactId>
+            <version>${keycloak.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.keycloak</groupId>
+            <artifactId>keycloak-admin-client</artifactId>
+            <version>${keycloak.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-hibernate6</artifactId>
@@ -323,7 +367,26 @@
                     </execution>
                 </executions>
             </plugin>
+            <!-- Surefire runs all Java tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <!-- Note config is repeated in scalatest config -->
+                <configuration>
+                    <argLine>@{argLine} -ea -Xmx4g -Xss4m -XX:MaxMetaspaceSize=2g -XX:ReservedCodeCacheSize=${CodeCacheSize}
+                        ${extraJavaTestArgs}
+                    </argLine>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 
+    <licenses>
+        <license>
+            <name>Apache-2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+
 </project>
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/AccessEndpoint.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/AccessEndpoint.java
index 84d04971e3bbeb376ea77277cdb52ef279a6954b..ba1a0e76da6d1dda766d64c33b68ab452d509618 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/AccessEndpoint.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/AccessEndpoint.java
@@ -6,7 +6,7 @@ import at.tuwien.api.error.ApiErrorDto;
 import at.tuwien.api.user.UserDto;
 import at.tuwien.exception.*;
 import at.tuwien.service.AccessService;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -31,13 +31,13 @@ import java.util.UUID;
 @RequestMapping(path = "/api/database/{databaseId}/access")
 public class AccessEndpoint extends RestEndpoint {
 
+    private final CacheService cacheService;
     private final AccessService accessService;
-    private final CredentialService credentialService;
 
     @Autowired
-    public AccessEndpoint(AccessService accessService, CredentialService credentialService) {
+    public AccessEndpoint(CacheService cacheService, AccessService accessService) {
+        this.cacheService = cacheService;
         this.accessService = accessService;
-        this.credentialService = credentialService;
     }
 
     @PostMapping("/{userId}")
@@ -80,8 +80,8 @@ public class AccessEndpoint extends RestEndpoint {
             throws NotAllowedException, DatabaseUnavailableException, DatabaseNotFoundException,
             RemoteUnavailableException, UserNotFoundException, DatabaseMalformedException, MetadataServiceException {
         log.debug("endpoint give access to database, databaseId={}, userId={}", databaseId, userId);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
-        final UserDto user = credentialService.getUser(userId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        final UserDto user = cacheService.getUser(userId);
         if (database.getAccesses().stream().anyMatch(a -> a.getUser().getId().equals(userId))) {
             log.error("Failed to create access to user with id {}: already has access", userId);
             throw new NotAllowedException("Failed to create access to user with id " + userId + ": already has access");
@@ -137,8 +137,8 @@ public class AccessEndpoint extends RestEndpoint {
             DatabaseMalformedException, MetadataServiceException {
         log.debug("endpoint modify access to database, databaseId={}, userId={}, access.type={}", databaseId, userId,
                 access.getType());
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
-        final UserDto user = credentialService.getUser(userId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        final UserDto user = cacheService.getUser(userId);
         if (database.getAccesses().stream().noneMatch(a -> a.getHuserid().equals(userId))) {
             log.error("Failed to update access to user with id {}: no access", userId);
             throw new NotAllowedException("Failed to update access to user with id " + userId + ": no access");
@@ -153,22 +153,6 @@ public class AccessEndpoint extends RestEndpoint {
         }
     }
 
-    @PutMapping
-    @PreAuthorize("hasAuthority('system')")
-    @Operation(summary = "Invalidate access cache for database",
-            security = {@SecurityRequirement(name = "basicAuth")},
-            hidden = true)
-    @ApiResponses(value = {
-            @ApiResponse(responseCode = "202",
-                    description = "Invalidated access cache succeeded")
-    })
-    public ResponseEntity<Void> invalidateAccess(@NotNull @PathVariable("databaseId") UUID databaseId) {
-        log.debug("endpoint empty access cache for database, databaseId={}", databaseId);
-        credentialService.invalidateAccess(databaseId);
-        return ResponseEntity.accepted()
-                .build();
-    }
-
     @DeleteMapping("/{userId}")
     @PreAuthorize("hasAuthority('system')")
     @Operation(summary = "Revoke access",
@@ -208,8 +192,8 @@ public class AccessEndpoint extends RestEndpoint {
             DatabaseUnavailableException, DatabaseNotFoundException, RemoteUnavailableException, UserNotFoundException,
             DatabaseMalformedException, MetadataServiceException {
         log.debug("endpoint revoke access to database, databaseId={}, userId={}", databaseId, userId);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
-        final UserDto user = credentialService.getUser(userId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        final UserDto user = cacheService.getUser(userId);
         if (database.getAccesses().stream().noneMatch(a -> a.getUser().getId().equals(userId))) {
             log.error("Failed to delete access to user with id {}: no access", userId);
             throw new NotAllowedException("Failed to delete access to user with id " + userId + ": no access");
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
index 0d12384dfa8842197d20bb608b87434d30cad1c7..801c6b638f3e1548711aa9d82989a83c62adde46 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
@@ -10,7 +10,7 @@ import at.tuwien.api.user.internal.UpdateUserPasswordDto;
 import at.tuwien.exception.*;
 import at.tuwien.service.AccessService;
 import at.tuwien.service.ContainerService;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.DatabaseService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
@@ -36,18 +36,18 @@ import java.util.UUID;
 @RequestMapping(path = "/api/database")
 public class DatabaseEndpoint extends RestEndpoint {
 
+    private final CacheService cacheService;
     private final AccessService accessService;
     private final DatabaseService databaseService;
     private final ContainerService containerService;
-    private final CredentialService credentialService;
 
     @Autowired
-    public DatabaseEndpoint(AccessService accessService, DatabaseService databaseService,
-                            ContainerService containerService, CredentialService credentialService) {
+    public DatabaseEndpoint(CacheService cacheService, AccessService accessService, DatabaseService databaseService,
+                            ContainerService containerService) {
+        this.cacheService = cacheService;
         this.accessService = accessService;
         this.databaseService = databaseService;
         this.containerService = containerService;
-        this.credentialService = credentialService;
     }
 
     @PostMapping
@@ -87,7 +87,7 @@ public class DatabaseEndpoint extends RestEndpoint {
             DatabaseMalformedException, QueryStoreCreateException, MetadataServiceException {
         log.debug("endpoint create database, data.containerId={}, data.internalName={}, data.username={}",
                 data.getContainerId(), data.getInternalName(), data.getUsername());
-        final ContainerDto container = credentialService.getContainer(data.getContainerId());
+        final ContainerDto container = cacheService.getContainer(data.getContainerId());
         try {
             final DatabaseDto database = containerService.createDatabase(container, data);
             containerService.createQueryStore(container, data.getInternalName());
@@ -135,7 +135,7 @@ public class DatabaseEndpoint extends RestEndpoint {
             DatabaseMalformedException, MetadataServiceException {
         log.debug("endpoint update user password in database, databaseId={}, data.username={}", databaseId,
                 data.getUsername());
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             databaseService.update(database, data);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/SubsetEndpoint.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/SubsetEndpoint.java
index 245774726f3725252ddb4d834af6ff2b3171ee25..e64deaa758a2a20100671b4526d7bacd609f3a86 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/SubsetEndpoint.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/SubsetEndpoint.java
@@ -1,13 +1,12 @@
 package at.tuwien.endpoints;
 
 import at.tuwien.ExportResourceDto;
-import at.tuwien.api.database.CreateViewDto;
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewColumnDto;
 import at.tuwien.api.database.ViewDto;
-import at.tuwien.api.database.query.ExecuteStatementDto;
 import at.tuwien.api.database.query.QueryDto;
 import at.tuwien.api.database.query.QueryPersistDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.api.error.ApiErrorDto;
 import at.tuwien.exception.*;
 import at.tuwien.mapper.MariaDbMapper;
@@ -50,26 +49,26 @@ import java.util.UUID;
 @RequestMapping(path = "/api/database/{databaseId}/subset")
 public class SubsetEndpoint extends RestEndpoint {
 
+    private final CacheService cacheService;
     private final MariaDbMapper mariaDbMapper;
     private final SubsetService subsetService;
     private final MetadataMapper metadataMapper;
     private final MetricsService metricsService;
     private final StorageService storageService;
     private final DatabaseService databaseService;
-    private final CredentialService credentialService;
     private final EndpointValidator endpointValidator;
 
     @Autowired
-    public SubsetEndpoint(MariaDbMapper mariaDbMapper, SubsetService subsetService, MetadataMapper metadataMapper,
-                          MetricsService metricsService, StorageService storageService, DatabaseService databaseService,
-                          CredentialService credentialService, EndpointValidator endpointValidator) {
+    public SubsetEndpoint(CacheService cacheService, MariaDbMapper mariaDbMapper, SubsetService subsetService, 
+                          MetadataMapper metadataMapper, MetricsService metricsService, StorageService storageService, 
+                          DatabaseService databaseService, EndpointValidator endpointValidator) {
+        this.cacheService = cacheService;
         this.mariaDbMapper = mariaDbMapper;
         this.subsetService = subsetService;
         this.metadataMapper = metadataMapper;
         this.metricsService = metricsService;
         this.storageService = storageService;
         this.databaseService = databaseService;
-        this.credentialService = credentialService;
         this.endpointValidator = endpointValidator;
     }
 
@@ -106,7 +105,7 @@ public class SubsetEndpoint extends RestEndpoint {
             throws DatabaseUnavailableException, DatabaseNotFoundException, RemoteUnavailableException,
             QueryNotFoundException, NotAllowedException, MetadataServiceException {
         log.debug("endpoint find subsets in database, databaseId={}, filterPersisted={}", databaseId, filterPersisted);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         endpointValidator.validateOnlyPrivateSchemaAccess(database, principal);
         final List<QueryDto> queries;
         try {
@@ -167,7 +166,7 @@ public class SubsetEndpoint extends RestEndpoint {
             MetadataServiceException, TableNotFoundException, QueryMalformedException, NotAllowedException {
         log.debug("endpoint find subset in database, databaseId={}, subsetId={}, accept={}, timestamp={}", databaseId,
                 subsetId, accept, timestamp);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         endpointValidator.validateOnlyPrivateSchemaAccess(database, principal);
         final QueryDto subset;
         try {
@@ -248,7 +247,7 @@ public class SubsetEndpoint extends RestEndpoint {
                             schema = @Schema(implementation = ApiErrorDto.class))}),
     })
     public ResponseEntity<List<Map<String, Object>>> create(@NotNull @PathVariable("databaseId") UUID databaseId,
-                                                            @Valid @RequestBody ExecuteStatementDto data,
+                                                            @Valid @RequestBody SubsetDto data,
                                                             Principal principal,
                                                             @NotNull HttpServletRequest request,
                                                             @RequestParam(required = false) Instant timestamp,
@@ -258,13 +257,12 @@ public class SubsetEndpoint extends RestEndpoint {
             QueryNotFoundException, StorageUnavailableException, QueryMalformedException, StorageNotFoundException,
             QueryStoreInsertException, TableMalformedException, PaginationException, QueryNotSupportedException,
             NotAllowedException, UserNotFoundException, MetadataServiceException, TableNotFoundException,
-            ViewMalformedException, ViewNotFoundException {
-        log.debug("endpoint create subset in database, databaseId={}, data.statement={}, page={}, size={}, " +
-                        "timestamp={}", databaseId, data.getStatement(), page, size,
-                timestamp);
+            ViewMalformedException, ViewNotFoundException, ImageNotFoundException {
+        log.debug("endpoint create subset in database, databaseId={}, page={}, size={}, timestamp={}", databaseId,
+                page, size, timestamp);
         /* check */
         endpointValidator.validateDataParams(page, size);
-        endpointValidator.validateForbiddenStatements(data.getStatement());
+        endpointValidator.validateSubsetParams(data);
         /* parameters */
         final UUID userId;
         if (principal != null) {
@@ -285,10 +283,10 @@ public class SubsetEndpoint extends RestEndpoint {
             log.debug("timestamp not set: default to {}", timestamp);
         }
         /* create */
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         endpointValidator.validateOnlyPrivateSchemaAccess(database, principal);
         try {
-            final UUID subsetId = subsetService.create(database, data.getStatement(), timestamp, userId);
+            final UUID subsetId = subsetService.create(database, data, timestamp, userId);
             return getData(databaseId, subsetId, principal, request, timestamp, page, size);
         } catch (SQLException e) {
             log.error("Failed to establish connection to database: {}", e.getMessage());
@@ -340,19 +338,18 @@ public class SubsetEndpoint extends RestEndpoint {
                                                              @RequestParam(required = false) Long page,
                                                              @RequestParam(required = false) Long size)
             throws PaginationException, DatabaseNotFoundException, RemoteUnavailableException, NotAllowedException,
-            QueryNotFoundException, DatabaseUnavailableException, TableMalformedException, QueryMalformedException,
-            UserNotFoundException, MetadataServiceException, TableNotFoundException, ViewNotFoundException,
-            ViewMalformedException {
+            QueryNotFoundException, DatabaseUnavailableException, QueryMalformedException, UserNotFoundException,
+            MetadataServiceException, TableNotFoundException, ViewNotFoundException, ViewMalformedException {
         log.debug("endpoint get subset data, databaseId={}, subsetId={}, principal.name={} page={}, size={}",
                 databaseId, subsetId, principal != null ? principal.getName() : null, page, size);
         endpointValidator.validateDataParams(page, size);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         if (!database.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed to re-execute query: no authentication found");
                 throw new NotAllowedException("Failed to re-execute query: no authentication found");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
         log.trace("visibility for database: is_public={}, is_schema_public={}", database.getIsPublic(), database.getIsSchemaPublic());
         /* parameters */
@@ -384,12 +381,7 @@ public class SubsetEndpoint extends RestEndpoint {
             final Dataset<Row> dataset = subsetService.getData(database, query);
             metricsService.countSubsetGetData(databaseId, subsetId);
             final String viewName = metadataMapper.queryDtoToViewName(subset);
-            databaseService.createView(database, CreateViewDto.builder()
-                    .name(viewName)
-                    .isPublic(false)
-                    .isSchemaPublic(false)
-                    .query(query)
-                    .build());
+            databaseService.createView(database, viewName, subset.getQuery());
             final ViewDto view = databaseService.inspectView(database, viewName);
             headers.set("Access-Control-Expose-Headers", "X-Id X-Headers");
             headers.set("X-Headers", String.join(",", view.getColumns().stream().map(ViewColumnDto::getInternalName).toList()));
@@ -448,8 +440,8 @@ public class SubsetEndpoint extends RestEndpoint {
             DatabaseUnavailableException, QueryNotFoundException, UserNotFoundException, MetadataServiceException {
         log.debug("endpoint persist query, databaseId={}, queryId={}, data.persist={}, principal.name={}", databaseId,
                 queryId, data.getPersist(), principal.getName());
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
-        credentialService.getAccess(databaseId, getId(principal));
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        cacheService.getAccess(databaseId, getId(principal));
         try {
             subsetService.persist(database, queryId, data.getPersist());
             final QueryDto dto = subsetService.findById(database, queryId);
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
index fc7dd5be7909eb412bdc07df53645d73f0a35c34..ab306ea6081163f17c3b36878b8fee36609b2036 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
@@ -49,28 +49,28 @@ import java.util.UUID;
 @RequestMapping(path = "/api/database/{databaseId}/table")
 public class TableEndpoint extends RestEndpoint {
 
+    private final CacheService cacheService;
     private final TableService tableService;
     private final MariaDbMapper mariaDbMapper;
     private final SubsetService subsetService;
     private final MetricsService metricsService;
     private final StorageService storageService;
     private final DatabaseService databaseService;
-    private final CredentialService credentialService;
     private final EndpointValidator endpointValidator;
     private final MetadataServiceGateway metadataServiceGateway;
 
     @Autowired
-    public TableEndpoint(TableService tableService, MariaDbMapper mariaDbMapper, SubsetService subsetService,
-                         MetricsService metricsService, StorageService storageService, DatabaseService databaseService,
-                         CredentialService credentialService, EndpointValidator endpointValidator,
+    public TableEndpoint(CacheService cacheService, TableService tableService, MariaDbMapper mariaDbMapper,
+                         SubsetService subsetService, MetricsService metricsService, StorageService storageService,
+                         DatabaseService databaseService, EndpointValidator endpointValidator,
                          MetadataServiceGateway metadataServiceGateway) {
+        this.cacheService = cacheService;
         this.tableService = tableService;
         this.mariaDbMapper = mariaDbMapper;
         this.subsetService = subsetService;
         this.metricsService = metricsService;
         this.storageService = storageService;
         this.databaseService = databaseService;
-        this.credentialService = credentialService;
         this.endpointValidator = endpointValidator;
         this.metadataServiceGateway = metadataServiceGateway;
     }
@@ -118,7 +118,7 @@ public class TableEndpoint extends RestEndpoint {
             throw new TableMalformedException("Table must have a primary key");
         }
         /* create */
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             final TableDto table = databaseService.createTable(database, data);
             return ResponseEntity.status(HttpStatus.CREATED)
@@ -159,12 +159,14 @@ public class TableEndpoint extends RestEndpoint {
     public ResponseEntity<TableDto> update(@NotNull @PathVariable("databaseId") UUID databaseId,
                                            @NotNull @PathVariable("tableId") UUID tableId,
                                            @Valid @RequestBody TableUpdateDto data) throws RemoteUnavailableException,
-            TableMalformedException, DatabaseUnavailableException, TableNotFoundException, MetadataServiceException {
+            TableMalformedException, DatabaseUnavailableException, TableNotFoundException, MetadataServiceException,
+            DatabaseNotFoundException {
         log.debug("endpoint update table, databaseId={}, data.description={}", databaseId, data.getDescription());
         /* create */
-        final TableDto table = credentialService.getTable(databaseId, tableId);
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.updateTable(table, data);
+            tableService.updateTable(database, table, data);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
                     .build();
         } catch (SQLException e) {
@@ -203,11 +205,12 @@ public class TableEndpoint extends RestEndpoint {
     public ResponseEntity<Void> delete(@NotNull @PathVariable("databaseId") UUID databaseId,
                                        @NotNull @PathVariable("tableId") UUID tableId)
             throws DatabaseUnavailableException, RemoteUnavailableException, TableNotFoundException,
-            QueryMalformedException, MetadataServiceException {
+            QueryMalformedException, MetadataServiceException, DatabaseNotFoundException {
         log.debug("endpoint delete table, databaseId={}, tableId={}", databaseId, tableId);
-        final TableDto table = credentialService.getTable(databaseId, tableId);
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.delete(table);
+            tableService.delete(database, table);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
                     .build();
         } catch (SQLException e) {
@@ -275,29 +278,29 @@ public class TableEndpoint extends RestEndpoint {
             timestamp = Instant.now();
             log.debug("timestamp not set: default to {}", timestamp);
         }
-        final TableDto table = credentialService.getTable(databaseId, tableId);
+        final TableDto table = cacheService.getTable(databaseId, tableId);
         if (!table.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed find table data: authentication required");
                 throw new NotAllowedException("Failed to find table data: authentication required");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             final HttpHeaders headers = new HttpHeaders();
             if (request.getMethod().equals("HEAD")) {
                 headers.set("Access-Control-Expose-Headers", "X-Count");
-                headers.set("X-Count", "" + tableService.getCount(table, timestamp));
+                headers.set("X-Count", "" + tableService.getCount(database, table, timestamp));
                 return ResponseEntity.ok()
                         .headers(headers)
                         .build();
             }
             headers.set("Access-Control-Expose-Headers", "X-Headers");
             headers.set("X-Headers", String.join(",", table.getColumns().stream().map(ColumnDto::getInternalName).toList()));
-            final String query = mariaDbMapper.defaultRawSelectQuery(table.getDatabase().getInternalName(),
+            final String query = mariaDbMapper.defaultRawSelectQuery(database.getInternalName(),
                     table.getInternalName(), timestamp, page, size);
-            final Dataset<Row> dataset = subsetService.getData(credentialService.getDatabase(table.getTdbid()),
-                    query);
+            final Dataset<Row> dataset = subsetService.getData(database, query);
             metricsService.countTableGetData(databaseId, tableId);
             return ResponseEntity.ok()
                     .headers(headers)
@@ -345,13 +348,14 @@ public class TableEndpoint extends RestEndpoint {
                                                @RequestHeader("Authorization") String authorization)
             throws DatabaseUnavailableException, RemoteUnavailableException, TableNotFoundException,
             TableMalformedException, QueryMalformedException, NotAllowedException, StorageUnavailableException,
-            StorageNotFoundException, MetadataServiceException {
+            StorageNotFoundException, MetadataServiceException, DatabaseNotFoundException {
         log.debug("endpoint insert raw table data, databaseId={}, tableId={}", databaseId, tableId);
-        final TableDto table = credentialService.getTable(databaseId, tableId);
-        final DatabaseAccessDto access = credentialService.getAccess(databaseId, getId(principal));
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseAccessDto access = cacheService.getAccess(databaseId, getId(principal));
         endpointValidator.validateOnlyWriteOwnOrWriteAllAccess(access.getType(), table.getOwner().getId(), getId(principal));
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.createTuple(table, data);
+            tableService.createTuple(database, table, data);
             metadataServiceGateway.updateTableStatistics(databaseId, tableId, authorization);
             return ResponseEntity.status(HttpStatus.CREATED)
                     .build();
@@ -397,14 +401,16 @@ public class TableEndpoint extends RestEndpoint {
                                                @NotNull Principal principal,
                                                @RequestHeader("Authorization") String authorization)
             throws DatabaseUnavailableException, RemoteUnavailableException, TableNotFoundException,
-            TableMalformedException, QueryMalformedException, NotAllowedException, MetadataServiceException {
+            TableMalformedException, QueryMalformedException, NotAllowedException, MetadataServiceException,
+            DatabaseNotFoundException {
         log.debug("endpoint update raw table data, databaseId={}, tableId={}, data.keys={}", databaseId, tableId,
                 data.getKeys());
-        final TableDto table = credentialService.getTable(databaseId, tableId);
-        final DatabaseAccessDto access = credentialService.getAccess(databaseId, getId(principal));
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseAccessDto access = cacheService.getAccess(databaseId, getId(principal));
         endpointValidator.validateOnlyWriteOwnOrWriteAllAccess(access.getType(), table.getOwner().getId(), getId(principal));
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.updateTuple(table, data);
+            tableService.updateTuple(database, table, data);
             metadataServiceGateway.updateTableStatistics(databaseId, tableId, authorization);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
                     .build();
@@ -450,14 +456,16 @@ public class TableEndpoint extends RestEndpoint {
                                                @NotNull Principal principal,
                                                @RequestHeader("Authorization") String authorization)
             throws DatabaseUnavailableException, RemoteUnavailableException, TableNotFoundException,
-            TableMalformedException, QueryMalformedException, NotAllowedException, MetadataServiceException {
+            TableMalformedException, QueryMalformedException, NotAllowedException, MetadataServiceException,
+            DatabaseNotFoundException {
         log.debug("endpoint delete raw table data, databaseId={}, tableId={}, data.keys={}", databaseId, tableId,
                 data.getKeys());
-        final TableDto table = credentialService.getTable(databaseId, tableId);
-        final DatabaseAccessDto access = credentialService.getAccess(databaseId, getId(principal));
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseAccessDto access = cacheService.getAccess(databaseId, getId(principal));
         endpointValidator.validateOnlyWriteOwnOrWriteAllAccess(access.getType(), table.getOwner().getId(), getId(principal));
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.deleteTuple(table, data);
+            tableService.deleteTuple(database, table, data);
             metadataServiceGateway.updateTableStatistics(databaseId, tableId, authorization);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
                     .build();
@@ -504,7 +512,7 @@ public class TableEndpoint extends RestEndpoint {
                                                             @RequestParam(value = "size", required = false) Long size,
                                                             Principal principal) throws DatabaseUnavailableException,
             RemoteUnavailableException, TableNotFoundException, NotAllowedException, MetadataServiceException,
-            PaginationException {
+            PaginationException, DatabaseNotFoundException {
         log.debug("endpoint find table history, databaseId={}, tableId={}", databaseId, tableId);
         if (size != null && size <= 0) {
             log.error("Invalid size: must be > 0");
@@ -513,16 +521,17 @@ public class TableEndpoint extends RestEndpoint {
             log.debug("size not set: default to 100L");
             size = 100L;
         }
-        final TableDto table = credentialService.getTable(databaseId, tableId);
+        final TableDto table = cacheService.getTable(databaseId, tableId);
         if (!table.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed to find table history: no authentication found");
                 throw new NotAllowedException("Failed to find table history: no authentication found");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            final List<TableHistoryDto> dto = tableService.history(table, size);
+            final List<TableHistoryDto> dto = tableService.history(database, table, size);
             return ResponseEntity.status(HttpStatus.OK)
                     .body(dto);
         } catch (SQLException e) {
@@ -572,7 +581,7 @@ public class TableEndpoint extends RestEndpoint {
             throws DatabaseUnavailableException, DatabaseNotFoundException, RemoteUnavailableException,
             DatabaseMalformedException, TableNotFoundException, MetadataServiceException {
         log.debug("endpoint inspect table schemas, databaseId={}", databaseId);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             return ResponseEntity.ok(databaseService.exploreTables(database));
         } catch (SQLException e) {
@@ -625,17 +634,18 @@ public class TableEndpoint extends RestEndpoint {
             timestamp = Instant.now();
             log.debug("timestamp not set: default to {}", timestamp);
         }
-        final TableDto table = credentialService.getTable(databaseId, tableId);
+        final TableDto table = cacheService.getTable(databaseId, tableId);
         if (!table.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed to export private table: principal is null");
                 throw new NotAllowedException("Failed to export private table: principal is null");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
-        final String query = mariaDbMapper.defaultRawSelectQuery(table.getDatabase().getInternalName(),
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        final String query = mariaDbMapper.defaultRawSelectQuery(database.getInternalName(),
                 table.getInternalName(), timestamp, null, null);
-        final Dataset<Row> dataset = subsetService.getData(credentialService.getDatabase(table.getTdbid()),
+        final Dataset<Row> dataset = subsetService.getData(cacheService.getDatabase(table.getDatabaseId()),
                 query);
         metricsService.countTableGetData(databaseId, tableId);
         final ExportResourceDto resource = storageService.transformDataset(dataset);
@@ -684,17 +694,18 @@ public class TableEndpoint extends RestEndpoint {
                                               @RequestHeader("Authorization") String authorization)
             throws RemoteUnavailableException, TableNotFoundException, NotAllowedException, MetadataServiceException,
             StorageNotFoundException, MalformedException, StorageUnavailableException, QueryMalformedException,
-            DatabaseUnavailableException {
+            DatabaseUnavailableException, DatabaseNotFoundException {
         log.debug("endpoint insert table data, databaseId={}, tableId={}, data.location={}", databaseId, tableId, data.getLocation());
-        final TableDto table = credentialService.getTable(databaseId, tableId);
-        final DatabaseAccessDto access = credentialService.getAccess(databaseId, getId(principal));
+        final TableDto table = cacheService.getTable(databaseId, tableId);
+        final DatabaseAccessDto access = cacheService.getAccess(databaseId, getId(principal));
         endpointValidator.validateOnlyWriteOwnOrWriteAllAccess(access.getType(), table.getOwner().getId(), getId(principal));
         if (data.getLineTermination() == null) {
             data.setLineTermination("\\r\\n");
             log.debug("line termination not present, default to {}", data.getLineTermination());
         }
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            tableService.importDataset(table, data);
+            tableService.importDataset(database, table, data);
         } catch (SQLException | TableMalformedException e) {
             log.error("Failed to establish connection to database: {}", e.getMessage());
             throw new DatabaseUnavailableException("Failed to establish connection to database", e);
@@ -734,11 +745,11 @@ public class TableEndpoint extends RestEndpoint {
     public ResponseEntity<TableStatisticDto> statistic(@NotNull @PathVariable("databaseId") UUID databaseId,
                                                        @NotNull @PathVariable("tableId") UUID tableId)
             throws DatabaseUnavailableException, RemoteUnavailableException, TableNotFoundException,
-            MetadataServiceException, TableMalformedException {
+            MetadataServiceException, TableMalformedException, DatabaseNotFoundException {
         log.debug("endpoint generate table statistic, databaseId={}, tableId={}", databaseId, tableId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            return ResponseEntity.ok(tableService.getStatistics(
-                    credentialService.getTable(databaseId, tableId)));
+            return ResponseEntity.ok(tableService.getStatistics(database, cacheService.getTable(databaseId, tableId)));
         } catch (SQLException e) {
             log.error("Failed to establish connection to database: {}", e.getMessage());
             throw new DatabaseUnavailableException("Failed to establish connection to database", e);
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
index 47b4bb81db2371e42eefd546937af97314bfef5d..430ac4edc5e00aa2a65a22ce8a07fb2a909bf486 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
@@ -46,25 +46,25 @@ import java.util.UUID;
 public class ViewEndpoint extends RestEndpoint {
 
     private final ViewService viewService;
+    private final CacheService cacheService;
     private final MariaDbMapper mariaDbMapper;
     private final SubsetService subsetService;
     private final MetricsService metricsService;
     private final StorageService storageService;
     private final DatabaseService databaseService;
-    private final CredentialService credentialService;
     private final EndpointValidator endpointValidator;
 
     @Autowired
-    public ViewEndpoint(ViewService viewService, MariaDbMapper mariaDbMapper, SubsetService subsetService,
-                        MetricsService metricsService, StorageService storageService, DatabaseService databaseService,
-                        CredentialService credentialService, EndpointValidator endpointValidator) {
+    public ViewEndpoint(ViewService viewService, CacheService cacheService, MariaDbMapper mariaDbMapper,
+                        SubsetService subsetService, MetricsService metricsService, StorageService storageService,
+                        DatabaseService databaseService, EndpointValidator endpointValidator) {
         this.viewService = viewService;
+        this.cacheService = cacheService;
         this.mariaDbMapper = mariaDbMapper;
         this.subsetService = subsetService;
         this.metricsService = metricsService;
         this.storageService = storageService;
         this.databaseService = databaseService;
-        this.credentialService = credentialService;
         this.endpointValidator = endpointValidator;
     }
 
@@ -109,7 +109,7 @@ public class ViewEndpoint extends RestEndpoint {
             throws DatabaseUnavailableException, DatabaseNotFoundException, RemoteUnavailableException,
             DatabaseMalformedException, MetadataServiceException, ViewNotFoundException {
         log.debug("endpoint inspect view schemas, databaseId={}", databaseId);
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             return ResponseEntity.ok(databaseService.exploreViews(database));
         } catch (SQLException e) {
@@ -152,12 +152,17 @@ public class ViewEndpoint extends RestEndpoint {
     })
     public ResponseEntity<ViewDto> create(@NotNull @PathVariable("databaseId") UUID databaseId,
                                           @Valid @RequestBody CreateViewDto data) throws DatabaseUnavailableException,
-            DatabaseNotFoundException, RemoteUnavailableException, ViewMalformedException, MetadataServiceException {
+            DatabaseNotFoundException, RemoteUnavailableException, ViewMalformedException, MetadataServiceException,
+            TableNotFoundException, ImageNotFoundException, QueryMalformedException {
         log.debug("endpoint create view, databaseId={}, data.name={}", databaseId, data.getName());
-        final DatabaseDto database = credentialService.getDatabase(databaseId);
+        /* check */
+        endpointValidator.validateSubsetParams(data.getQuery());
+        /* create */
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             return ResponseEntity.status(HttpStatus.CREATED)
-                    .body(databaseService.createView(database, data));
+                    .body(databaseService.createView(database, mariaDbMapper.nameToInternalName(data.getName()),
+                            mariaDbMapper.subsetDtoToRawQuery(database, data.getQuery())));
         } catch (SQLException e) {
             log.error("Failed to establish connection to database: {}", e.getMessage());
             throw new DatabaseUnavailableException("Failed to establish connection to database: " + e.getMessage(), e);
@@ -196,11 +201,12 @@ public class ViewEndpoint extends RestEndpoint {
     public ResponseEntity<Void> delete(@NotNull @PathVariable("databaseId") UUID databaseId,
                                        @NotNull @PathVariable("viewId") UUID viewId)
             throws DatabaseUnavailableException, RemoteUnavailableException, ViewNotFoundException,
-            ViewMalformedException, MetadataServiceException {
+            ViewMalformedException, MetadataServiceException, DatabaseNotFoundException {
         log.debug("endpoint delete view, databaseId={}, viewId={}", databaseId, viewId);
-        final ViewDto view = credentialService.getView(databaseId, viewId);
+        final ViewDto view = cacheService.getView(databaseId, viewId);
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
-            viewService.delete(view);
+            viewService.delete(database, view);
             return ResponseEntity.status(HttpStatus.ACCEPTED)
                     .build();
         } catch (SQLException e) {
@@ -273,28 +279,29 @@ public class ViewEndpoint extends RestEndpoint {
             timestamp = Instant.now();
             log.debug("timestamp not set: default to {}", timestamp);
         }
-        final ViewDto view = credentialService.getView(databaseId, viewId);
+        final ViewDto view = cacheService.getView(databaseId, viewId);
         if (!view.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed to get data from view: unauthorized");
                 throw new NotAllowedException("Failed to get data from view: unauthorized");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
         try {
             final HttpHeaders headers = new HttpHeaders();
             if (request.getMethod().equals("HEAD")) {
                 headers.set("Access-Control-Expose-Headers", "X-Count");
-                headers.set("X-Count", "" + viewService.count(view, timestamp));
+                headers.set("X-Count", "" + viewService.count(database, view, timestamp));
                 return ResponseEntity.ok()
                         .headers(headers)
                         .build();
             }
             headers.set("Access-Control-Expose-Headers", "X-Headers");
             headers.set("X-Headers", String.join(",", view.getColumns().stream().map(ViewColumnDto::getInternalName).toList()));
-            final String query = mariaDbMapper.defaultRawSelectQuery(view.getDatabase().getInternalName(),
+            final String query = mariaDbMapper.defaultRawSelectQuery(database.getInternalName(),
                     view.getInternalName(), timestamp, page, size);
-            final Dataset<Row> dataset = subsetService.getData(credentialService.getDatabase(databaseId),
+            final Dataset<Row> dataset = subsetService.getData(cacheService.getDatabase(databaseId),
                     query);
             metricsService.countViewGetData(databaseId, viewId);
             return ResponseEntity.ok()
@@ -351,17 +358,18 @@ public class ViewEndpoint extends RestEndpoint {
             log.debug("timestamp not set: default to {}", timestamp);
         }
         /* parameters */
-        final ViewDto view = credentialService.getView(databaseId, viewId);
+        final ViewDto view = cacheService.getView(databaseId, viewId);
         if (!view.getIsPublic()) {
             if (principal == null) {
                 log.error("Failed to export private view: principal is null");
                 throw new NotAllowedException("Failed to export private view: principal is null");
             }
-            credentialService.getAccess(databaseId, getId(principal));
+            cacheService.getAccess(databaseId, getId(principal));
         }
-        final String query = mariaDbMapper.defaultRawSelectQuery(view.getDatabase().getInternalName(),
+        final DatabaseDto database = cacheService.getDatabase(databaseId);
+        final String query = mariaDbMapper.defaultRawSelectQuery(database.getInternalName(),
                 view.getInternalName(), timestamp, null, null);
-        final Dataset<Row> dataset = subsetService.getData(credentialService.getDatabase(databaseId),
+        final Dataset<Row> dataset = subsetService.getData(cacheService.getDatabase(databaseId),
                 query);
         metricsService.countViewGetData(databaseId, viewId);
         final ExportResourceDto resource = storageService.transformDataset(dataset);
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
index cf3f25fd2632e8427bf21afdc59634b4c46b91f6..0926b1cf023a8a67b1712b7f2e2283c58083273c 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
@@ -458,6 +458,13 @@ public class ApiExceptionHandler extends ResponseEntityExceptionHandler {
         return generic_handle(e.getClass(), e.getLocalizedMessage());
     }
 
+    @Hidden
+    @ResponseStatus(code = HttpStatus.CONFLICT)
+    @ExceptionHandler(ViewExistsException.class)
+    public ResponseEntity<ApiErrorDto> handle(ViewExistsException e) {
+        return generic_handle(e.getClass(), e.getLocalizedMessage());
+    }
+
     @Hidden
     @ResponseStatus(code = HttpStatus.BAD_REQUEST)
     @ExceptionHandler(ViewMalformedException.class)
diff --git a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/validation/EndpointValidator.java b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/validation/EndpointValidator.java
index 9ad13f5be68bf6714f5d18fec4973fe9898b38f6..ebb39f7c1879e354233a163c4ef677376ee2e44b 100644
--- a/dbrepo-data-service/rest-service/src/main/java/at/tuwien/validation/EndpointValidator.java
+++ b/dbrepo-data-service/rest-service/src/main/java/at/tuwien/validation/EndpointValidator.java
@@ -3,10 +3,13 @@ package at.tuwien.validation;
 import at.tuwien.api.database.AccessTypeDto;
 import at.tuwien.api.database.DatabaseAccessDto;
 import at.tuwien.api.database.DatabaseDto;
+import at.tuwien.api.database.query.FilterDto;
+import at.tuwien.api.database.query.FilterTypeDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.config.QueryConfig;
 import at.tuwien.endpoints.RestEndpoint;
 import at.tuwien.exception.*;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
@@ -24,10 +27,10 @@ import java.util.regex.Pattern;
 public class EndpointValidator extends RestEndpoint {
 
     private final QueryConfig queryConfig;
-    private final CredentialService credentialService;
+    private final CacheService credentialService;
 
     @Autowired
-    public EndpointValidator(QueryConfig queryConfig, CredentialService credentialService) {
+    public EndpointValidator(QueryConfig queryConfig, CacheService credentialService) {
         this.queryConfig = queryConfig;
         this.credentialService = credentialService;
     }
@@ -63,6 +66,22 @@ public class EndpointValidator extends RestEndpoint {
         validateOnlyAccess(database, principal, writeAccessOnly);
     }
 
+    public void validateSubsetParams(SubsetDto subset) throws QueryMalformedException {
+        if (subset.getFilter() != null) {
+            final List<FilterDto> filters = subset.getFilter();
+            FilterTypeDto previous = null;
+            for (int i = 0; i < filters.size(); i++) {
+                final FilterDto filter = filters.get(i);
+                if ((i == 0 && !filter.getType().equals(FilterTypeDto.WHERE)) ||
+                        (i > 0 && !previous.equals(FilterTypeDto.WHERE) && (filter.getType().equals(FilterTypeDto.AND) || filter.getType().equals(FilterTypeDto.OR)))) {
+                    log.error("Failed to validate subset: invalid specification, must be where-[(and|or)-where]");
+                    throw new QueryMalformedException("Failed to validate subset: invalid specification, must be where-[(and|or)-where]");
+                }
+                previous = filter.getType();
+            }
+        }
+    }
+
     public void validateOnlyPrivateSchemaHasRole(DatabaseDto database, Principal principal, String role)
             throws NotAllowedException {
         if (database.getIsSchemaPublic()) {
diff --git a/dbrepo-data-service/rest-service/src/main/resources/init/querystore.sql b/dbrepo-data-service/rest-service/src/main/resources/init/querystore.sql
deleted file mode 100644
index de488f89ee3b9b24426927bb114a3e73f4d6daf0..0000000000000000000000000000000000000000
--- a/dbrepo-data-service/rest-service/src/main/resources/init/querystore.sql
+++ /dev/null
@@ -1,3 +0,0 @@
-CREATE PROCEDURE hash_table(IN name VARCHAR(255), OUT hash VARCHAR(255), OUT count BIGINT) BEGIN DECLARE _sql TEXT; SELECT CONCAT('SELECT SHA2(GROUP_CONCAT(CONCAT_WS(\'\',', GROUP_CONCAT(CONCAT('`', column_name, '`') ORDER BY column_name), ') SEPARATOR \',\'), 256) AS hash, COUNT(*) AS count FROM `', name, '` INTO @hash, @count;') FROM `information_schema`.`columns` WHERE `table_schema` = DATABASE() AND `table_name` = name INTO _sql; PREPARE stmt FROM _sql; EXECUTE stmt; DEALLOCATE PREPARE stmt; SET hash = @hash; SET count = @count; END;
-CREATE PROCEDURE store_query(IN query TEXT, IN executed DATETIME, OUT queryId BIGINT) BEGIN DECLARE _queryhash varchar(255) DEFAULT SHA2(query, 256); DECLARE _username varchar(255) DEFAULT REGEXP_REPLACE(current_user(), '@.*', ''); DECLARE _query TEXT DEFAULT CONCAT('CREATE OR REPLACE TABLE _tmp AS (', query, ')'); PREPARE stmt FROM _query; EXECUTE stmt; DEALLOCATE PREPARE stmt; CALL hash_table('_tmp', @hash, @count); DROP TABLE IF EXISTS `_tmp`; IF @hash IS NULL THEN INSERT INTO `qs_queries` (`created_by`, `query`, `query_normalized`, `is_persisted`, `query_hash`, `result_hash`, `result_number`, `executed`) SELECT _username, query, query, false, _queryhash, @hash, @count, executed WHERE NOT EXISTS (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` IS NULL); SET queryId = (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` IS NULL); ELSE INSERT INTO `qs_queries` (`created_by`, `query`, `query_normalized`, `is_persisted`, `query_hash`, `result_hash`, `result_number`, `executed`) SELECT _username, query, query, false, _queryhash, @hash, @count, executed WHERE NOT EXISTS (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` = @hash); SET queryId = (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` = @hash); END IF; END;
-CREATE DEFINER = 'root' PROCEDURE _store_query(IN _username VARCHAR(255), IN query TEXT, IN executed DATETIME, OUT queryId BIGINT) BEGIN DECLARE _queryhash varchar(255) DEFAULT SHA2(query, 256); DECLARE _query TEXT DEFAULT CONCAT('CREATE OR REPLACE TABLE _tmp AS (', query, ')'); PREPARE stmt FROM _query; EXECUTE stmt; DEALLOCATE PREPARE stmt; CALL hash_table('_tmp', @hash, @count); DROP TABLE IF EXISTS `_tmp`; IF @hash IS NULL THEN INSERT INTO `qs_queries` (`created_by`, `query`, `query_normalized`, `is_persisted`, `query_hash`, `result_hash`, `result_number`, `executed`) SELECT _username, query, query, false, _queryhash, @hash, @count, executed WHERE NOT EXISTS (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` IS NULL); SET queryId = (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` IS NULL); ELSE INSERT INTO `qs_queries` (`created_by`, `query`, `query_normalized`, `is_persisted`, `query_hash`, `result_hash`, `result_number`, `executed`) SELECT _username, query, query, false, _queryhash, @hash, @count, executed WHERE NOT EXISTS (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` = @hash); SET queryId = (SELECT `id` FROM `qs_queries` WHERE `query_hash` = _queryhash AND `result_hash` = @hash); END IF; END;
\ No newline at end of file
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/config/MariaDbConfig.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/config/MariaDbConfig.java
index 709e3893867dd12eaddde505cb80e4667de14d8c..e03ea299a229c41ee6a5a5c342ea7af69ebc4bd4 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/config/MariaDbConfig.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/config/MariaDbConfig.java
@@ -30,10 +30,10 @@ public class MariaDbConfig {
         log.debug("created database {}", database);
     }
 
-    public static void createInitDatabase(ContainerDto container, DatabaseDto database) throws SQLException {
-        final String jdbc = "jdbc:mariadb://" + container.getHost() + ":" + container.getPort();
+    public static void createInitDatabase(DatabaseDto database) throws SQLException {
+        final String jdbc = "jdbc:mariadb://" + database.getContainer().getHost() + ":" + database.getContainer().getPort();
         log.trace("connect to database {}", jdbc);
-        try (Connection connection = DriverManager.getConnection(jdbc, container.getUsername(), container.getPassword())) {
+        try (Connection connection = DriverManager.getConnection(jdbc, database.getContainer().getUsername(), database.getContainer().getPassword())) {
             ResourceDatabasePopulator populator = new ResourceDatabasePopulator(new ClassPathResource("init/" + database.getInternalName() + ".sql"), new ClassPathResource("init/users.sql"), new ClassPathResource("init/querystore.sql"));
             populator.setSeparator(";\n");
             populator.populate(connection);
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/AccessEndpointUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/AccessEndpointUnitTest.java
index 3cbdf09af1f7705b2dd3fa550c24770618ba99d1..d41e0609bae2f356a68dd5baddee150d73356a68 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/AccessEndpointUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/AccessEndpointUnitTest.java
@@ -6,7 +6,7 @@ import at.tuwien.api.user.UserDto;
 import at.tuwien.endpoints.AccessEndpoint;
 import at.tuwien.exception.*;
 import at.tuwien.service.AccessService;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
 import org.junit.jupiter.api.BeforeEach;
@@ -34,7 +34,7 @@ public class AccessEndpointUnitTest extends AbstractUnitTest {
     private AccessEndpoint accessEndpoint;
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @MockBean
     private AccessService accessService;
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/DatabaseEndpointUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/DatabaseEndpointUnitTest.java
index 43f7b9353e0381a6bc001b1a563036e20e8daae1..e2a6c550d04a62dcc08fb2603c50c7c05af750c9 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/DatabaseEndpointUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/DatabaseEndpointUnitTest.java
@@ -7,7 +7,7 @@ import at.tuwien.endpoints.DatabaseEndpoint;
 import at.tuwien.exception.*;
 import at.tuwien.service.AccessService;
 import at.tuwien.service.ContainerService;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.DatabaseService;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
@@ -48,7 +48,7 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
     private DatabaseService databaseService;
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @BeforeEach
     public void beforeEach() {
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/SubsetEndpointUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/SubsetEndpointUnitTest.java
index f29226406040247bd274c0562d4d2d99dff9d278..b72bceafd1dfb22c67439847492624394cae81ba 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/SubsetEndpointUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/SubsetEndpointUnitTest.java
@@ -1,13 +1,12 @@
 package at.tuwien.endpoint;
 
-import at.tuwien.api.database.CreateViewDto;
 import at.tuwien.api.database.DatabaseDto;
-import at.tuwien.api.database.query.ExecuteStatementDto;
 import at.tuwien.api.database.query.QueryDto;
 import at.tuwien.api.database.query.QueryPersistDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.endpoints.SubsetEndpoint;
 import at.tuwien.exception.*;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.DatabaseService;
 import at.tuwien.service.StorageService;
 import at.tuwien.service.SubsetService;
@@ -37,6 +36,7 @@ import java.util.Map;
 import java.util.UUID;
 
 import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.*;
 
 @Log4j2
@@ -63,7 +63,7 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
     private DatabaseService databaseService;
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @BeforeEach
     public void beforeEach() {
@@ -162,6 +162,23 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
         generic_findById(DATABASE_1_ID, QUERY_1_ID, "application/json", null, USER_1_PRINCIPAL);
     }
 
+    @Test
+    @WithMockUser(username = USER_1_USERNAME)
+    public void findById_privateDataPrivateSchemaAcceptEmpty_succeeds() throws DatabaseNotFoundException, SQLException,
+            RemoteUnavailableException, UserNotFoundException, QueryNotFoundException, MetadataServiceException,
+            DatabaseUnavailableException, TableNotFoundException, StorageUnavailableException, NotAllowedException,
+            QueryMalformedException, FormatNotAvailableException {
+
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+        when(subsetService.findById(DATABASE_1_PRIVILEGED_DTO, QUERY_1_ID))
+                .thenReturn(QUERY_1_DTO);
+
+        /* test */
+        generic_findById(DATABASE_1_ID, QUERY_1_ID, null, null, USER_1_PRINCIPAL);
+    }
+
     @Test
     @WithMockUser(username = USER_3_USERNAME)
     public void findById_publicDataPrivateSchema_succeeds() throws DatabaseNotFoundException, SQLException,
@@ -296,20 +313,18 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
             TableMalformedException, NotAllowedException, QueryNotSupportedException, PaginationException,
             StorageNotFoundException, DatabaseUnavailableException, StorageUnavailableException, SQLException,
             QueryMalformedException, QueryNotFoundException, DatabaseNotFoundException, RemoteUnavailableException,
-            MetadataServiceException, TableNotFoundException, ViewMalformedException, ViewNotFoundException {
+            MetadataServiceException, TableNotFoundException, ViewMalformedException, ViewNotFoundException,
+            ImageNotFoundException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_5_STATEMENT)
-                .build();
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_3_ID))
                 .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
-        when(subsetService.findById(eq(DATABASE_3_PRIVILEGED_DTO), any(UUID.class)))
+        when(subsetService.findById(any(DatabaseDto.class), any(UUID.class)))
                 .thenReturn(QUERY_5_DTO);
-        when(subsetService.create(eq(DATABASE_3_PRIVILEGED_DTO), eq(QUERY_5_STATEMENT), any(Instant.class), any(UUID.class)))
+        when(subsetService.create(any(DatabaseDto.class), any(SubsetDto.class), any(Instant.class), any(UUID.class)))
                 .thenReturn(QUERY_5_ID);
         when(databaseService.inspectView(any(DatabaseDto.class), anyString()))
                 .thenReturn(QUERY_5_VIEW_DTO);
@@ -317,24 +332,7 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
                 .thenReturn("POST");
 
         /* test */
-        subsetEndpoint.create(DATABASE_3_ID, request, USER_1_PRINCIPAL, httpServletRequest, null, 0L, 10L);
-    }
-
-    @Test
-    @WithMockUser(username = USER_1_USERNAME, authorities = {"execute-query"})
-    public void create_forbiddenKeyword_fails() {
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement("SELECT COUNT(id) FROM tbl")
-                .build();
-
-        /* mock */
-        when(httpServletRequest.getMethod())
-                .thenReturn("POST");
-
-        /* test */
-        assertThrows(QueryNotSupportedException.class, () -> {
-            subsetEndpoint.create(DATABASE_3_ID, request, USER_1_PRINCIPAL, httpServletRequest, null, 0L, 10L);
-        });
+        subsetEndpoint.create(DATABASE_3_ID, QUERY_5_SUBSET_DTO, USER_1_PRINCIPAL, httpServletRequest, null, 0L, 10L);
     }
 
     @Test
@@ -344,22 +342,19 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
             PaginationException, StorageNotFoundException, DatabaseUnavailableException, StorageUnavailableException,
             QueryMalformedException, QueryNotFoundException, DatabaseNotFoundException, RemoteUnavailableException,
             SQLException, MetadataServiceException, TableNotFoundException, ViewMalformedException,
-            ViewNotFoundException {
+            ViewNotFoundException, ImageNotFoundException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_5_STATEMENT)
-                .build();
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_3_ID))
                 .thenReturn(DATABASE_3_PRIVILEGED_DTO);
-        when(subsetService.create(any(DatabaseDto.class), eq(QUERY_5_STATEMENT), any(Instant.class), eq(USER_1_ID)))
+        when(subsetService.create(any(DatabaseDto.class), any(SubsetDto.class), any(Instant.class), eq(USER_1_ID)))
                 .thenReturn(QUERY_5_ID);
         when(subsetService.findById(any(DatabaseDto.class), eq(QUERY_5_ID)))
                 .thenReturn(QUERY_5_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
-        when(databaseService.createView(any(DatabaseDto.class), any(CreateViewDto.class)))
+        when(databaseService.createView(any(DatabaseDto.class), anyString(), anyString()))
                 .thenReturn(QUERY_5_VIEW_DTO);
         when(databaseService.inspectView(any(DatabaseDto.class), anyString()))
                 .thenReturn(QUERY_5_VIEW_DTO);
@@ -367,16 +362,13 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
                 .thenReturn("POST");
 
         /* test */
-        subsetEndpoint.create(DATABASE_3_ID, request, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
+        subsetEndpoint.create(DATABASE_3_ID, QUERY_5_SUBSET_DTO, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
     }
 
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = {"execute-query"})
     public void create_databaseNotFound_fails() throws RemoteUnavailableException,
             DatabaseNotFoundException, MetadataServiceException {
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_5_STATEMENT)
-                .build();
 
         /* mock */
         doThrow(DatabaseNotFoundException.class)
@@ -387,38 +379,36 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(DatabaseNotFoundException.class, () -> {
-            subsetEndpoint.create(DATABASE_3_ID, request, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
+            subsetEndpoint.create(DATABASE_3_ID, QUERY_5_SUBSET_DTO, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
         });
     }
 
     @Test
     @WithAnonymousUser
-    public void create_publicDataPublicSchemaAnonymous_succeeds() throws DatabaseNotFoundException, RemoteUnavailableException,
-            MetadataServiceException, UserNotFoundException, QueryStoreInsertException, TableMalformedException,
-            NotAllowedException, SQLException, QueryNotFoundException, DatabaseUnavailableException,
-            StorageUnavailableException, QueryMalformedException, QueryNotSupportedException, PaginationException,
-            StorageNotFoundException, TableNotFoundException, ViewMalformedException, ViewNotFoundException {
+    public void create_publicDataPublicSchemaAnonymous_succeeds() throws DatabaseNotFoundException,
+            RemoteUnavailableException, MetadataServiceException, UserNotFoundException, QueryStoreInsertException,
+            TableMalformedException, NotAllowedException, SQLException, QueryNotFoundException, PaginationException,
+            DatabaseUnavailableException, StorageUnavailableException, QueryMalformedException,
+            QueryNotSupportedException, StorageNotFoundException, TableNotFoundException, ViewMalformedException,
+            ViewNotFoundException, ImageNotFoundException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_5_STATEMENT)
-                .build();
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_4_ID))
                 .thenReturn(DATABASE_4_PRIVILEGED_DTO);
         when(subsetService.findById(eq(DATABASE_4_PRIVILEGED_DTO), any(UUID.class)))
-                .thenReturn(QUERY_5_DTO);
-        when(subsetService.create(eq(DATABASE_4_PRIVILEGED_DTO), eq(QUERY_5_STATEMENT), any(Instant.class), eq(null)))
-                .thenReturn(QUERY_5_ID);
+                .thenReturn(QUERY_9_DTO);
+        when(subsetService.create(eq(DATABASE_4_PRIVILEGED_DTO), any(SubsetDto.class), any(Instant.class), eq(null)))
+                .thenReturn(QUERY_9_ID);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
         when(databaseService.inspectView(any(DatabaseDto.class), anyString()))
-                .thenReturn(QUERY_5_VIEW_DTO);
+                .thenReturn(QUERY_9_VIEW_DTO);
         when(httpServletRequest.getMethod())
                 .thenReturn("POST");
 
         /* test */
-        subsetEndpoint.create(DATABASE_4_ID, request, null, httpServletRequest, null, null, null);
+        subsetEndpoint.create(DATABASE_4_ID, QUERY_9_SUBSET_DTO, null, httpServletRequest, null, null, null);
     }
 
     @Test
@@ -427,18 +417,16 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
             MetadataServiceException, UserNotFoundException, QueryStoreInsertException, TableMalformedException,
             NotAllowedException, SQLException, QueryNotFoundException, DatabaseUnavailableException,
             StorageUnavailableException, QueryMalformedException, QueryNotSupportedException, PaginationException,
-            StorageNotFoundException, TableNotFoundException, ViewMalformedException, ViewNotFoundException {
+            StorageNotFoundException, TableNotFoundException, ViewMalformedException, ViewNotFoundException,
+            ImageNotFoundException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_1_STATEMENT)
-                .build();
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
                 .thenReturn(DATABASE_1_PRIVILEGED_DTO);
-        when(subsetService.findById(eq(DATABASE_1_PRIVILEGED_DTO), any(UUID.class)))
+        when(subsetService.findById(any(DatabaseDto.class), any(UUID.class)))
                 .thenReturn(QUERY_1_DTO);
-        when(subsetService.create(eq(DATABASE_1_PRIVILEGED_DTO), eq(QUERY_1_STATEMENT), any(Instant.class), any(UUID.class)))
+        when(subsetService.create(any(DatabaseDto.class), any(SubsetDto.class), any(Instant.class), any(UUID.class)))
                 .thenReturn(QUERY_1_ID);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
@@ -448,7 +436,7 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
                 .thenReturn("POST");
 
         /* test */
-        subsetEndpoint.create(DATABASE_1_ID, request, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
+        subsetEndpoint.create(DATABASE_1_ID, QUERY_1_SUBSET_DTO, USER_1_PRINCIPAL, httpServletRequest, null, null, null);
     }
 
     @Test
@@ -457,15 +445,12 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
             MetadataServiceException, UserNotFoundException, QueryNotFoundException, QueryMalformedException,
             TableNotFoundException, RemoteUnavailableException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
-        final ExecuteStatementDto request = ExecuteStatementDto.builder()
-                .statement(QUERY_5_STATEMENT)
-                .build();
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_2_ID))
                 .thenReturn(DATABASE_2_PRIVILEGED_DTO);
         when(subsetService.findById(eq(DATABASE_2_PRIVILEGED_DTO), any(UUID.class)))
-                .thenReturn(QUERY_2_DTO);
+                .thenReturn(QUERY_8_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
         when(httpServletRequest.getMethod())
@@ -473,13 +458,13 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
-            subsetEndpoint.create(DATABASE_2_ID, request, null, httpServletRequest, null, null, null);
+            subsetEndpoint.create(DATABASE_2_ID, QUERY_8_SUBSET_DTO, null, httpServletRequest, null, null, null);
         });
     }
 
     @Test
     public void getData_succeeds() throws DatabaseNotFoundException, RemoteUnavailableException, UserNotFoundException,
-            NotAllowedException, SQLException, QueryNotFoundException, TableMalformedException, QueryMalformedException,
+            NotAllowedException, SQLException, QueryNotFoundException, QueryMalformedException,
             DatabaseUnavailableException, PaginationException, MetadataServiceException, TableNotFoundException,
             ViewNotFoundException, ViewMalformedException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
@@ -531,9 +516,9 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_1_USERNAME)
     public void getData_private_succeeds() throws DatabaseNotFoundException, RemoteUnavailableException,
-            UserNotFoundException, DatabaseUnavailableException, NotAllowedException, TableMalformedException,
-            QueryMalformedException, QueryNotFoundException, PaginationException, SQLException,
-            MetadataServiceException, TableNotFoundException, ViewNotFoundException, ViewMalformedException {
+            UserNotFoundException, DatabaseUnavailableException, NotAllowedException, QueryMalformedException,
+            QueryNotFoundException, PaginationException, SQLException, MetadataServiceException,
+            TableNotFoundException, ViewNotFoundException, ViewMalformedException {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
 
         /* mock */
@@ -592,9 +577,9 @@ public class SubsetEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_1_USERNAME)
     public void getData_privateHead_succeeds() throws DatabaseNotFoundException, RemoteUnavailableException,
-            UserNotFoundException, DatabaseUnavailableException, NotAllowedException, TableMalformedException,
-            QueryMalformedException, QueryNotFoundException, PaginationException, SQLException,
-            MetadataServiceException, TableNotFoundException, ViewNotFoundException, ViewMalformedException {
+            UserNotFoundException, DatabaseUnavailableException, NotAllowedException, QueryMalformedException,
+            QueryNotFoundException, PaginationException, SQLException, MetadataServiceException,
+            TableNotFoundException, ViewNotFoundException, ViewMalformedException {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/TableEndpointUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/TableEndpointUnitTest.java
index 57e6ede962cec6fa7f97721bc0089604ee900eff..25f3b60ceac1f47225e73c237cefc215c21f1696 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/TableEndpointUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/TableEndpointUnitTest.java
@@ -4,10 +4,11 @@ import at.tuwien.api.database.DatabaseAccessDto;
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.query.ImportDto;
 import at.tuwien.api.database.table.*;
+import at.tuwien.api.database.table.internal.TableCreateDto;
 import at.tuwien.endpoints.TableEndpoint;
 import at.tuwien.exception.*;
 import at.tuwien.gateway.MetadataServiceGateway;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.DatabaseService;
 import at.tuwien.service.SubsetService;
 import at.tuwien.service.TableService;
@@ -68,7 +69,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     private DatabaseService databaseService;
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @MockBean
     private MetadataServiceGateway metadataServiceGateway;
@@ -103,10 +104,10 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
                 .thenReturn(DATABASE_1_PRIVILEGED_DTO);
-        when(databaseService.createTable(DATABASE_1_PRIVILEGED_DTO, TABLE_4_CREATE_INTERNAL_DTO))
-                .thenReturn(TABLE_4_PRIVILEGED_DTO);
-        when(databaseService.inspectTable(DATABASE_1_PRIVILEGED_DTO, TABLE_4_INTERNALNAME))
-                .thenReturn(TABLE_4_PRIVILEGED_DTO);
+        when(databaseService.createTable(any(DatabaseDto.class), any(TableCreateDto.class)))
+                .thenReturn(TABLE_4_DTO);
+        when(databaseService.inspectTable(any(DatabaseDto.class), anyString()))
+                .thenReturn(TABLE_4_DTO);
 
         /* test */
         final ResponseEntity<TableDto> response = tableEndpoint.create(DATABASE_1_ID, TABLE_4_CREATE_INTERNAL_DTO);
@@ -170,12 +171,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithAnonymousUser
     public void statistic_succeeds() throws DatabaseUnavailableException, TableNotFoundException, SQLException,
-            TableMalformedException, RemoteUnavailableException, MetadataServiceException {
+            TableMalformedException, RemoteUnavailableException, MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(tableService.getStatistics(any(TableDto.class)))
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        when(tableService.getStatistics(any(DatabaseDto.class), any(TableDto.class)))
                 .thenReturn(TABLE_8_STATISTIC_DTO);
 
         /* test */
@@ -186,14 +189,16 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithAnonymousUser
     public void statistic_unavailable_fails() throws TableNotFoundException, TableMalformedException,
-            RemoteUnavailableException, MetadataServiceException, SQLException {
+            RemoteUnavailableException, MetadataServiceException, SQLException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .getStatistics(any(TableDto.class));
+                .getStatistics(any(DatabaseDto.class), any(TableDto.class));
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -220,14 +225,17 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
     public void delete_succeeds() throws RemoteUnavailableException, DatabaseUnavailableException,
-            TableNotFoundException, QueryMalformedException, SQLException, MetadataServiceException {
+            TableNotFoundException, QueryMalformedException, SQLException, MetadataServiceException,
+            DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doNothing()
                 .when(tableService)
-                .delete(TABLE_1_PRIVILEGED_DTO);
+                .delete(DATABASE_1_DTO, TABLE_1_DTO);
 
         /* test */
         final ResponseEntity<Void> response = tableEndpoint.delete(DATABASE_1_ID, TABLE_1_ID);
@@ -263,14 +271,16 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
     public void delete_unavailable_fails() throws RemoteUnavailableException, TableNotFoundException, SQLException,
-            MetadataServiceException, QueryMalformedException {
+            MetadataServiceException, QueryMalformedException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .delete(TABLE_1_PRIVILEGED_DTO);
+                .delete(any(DatabaseDto.class), any(TableDto.class));
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -286,17 +296,17 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(credentialService.getDatabase(DATABASE_3_ID))
-                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        when(credentialService.getTable(DATABASE_1_ID, TABLE_4_ID))
+                .thenReturn(TABLE_4_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
         when(httpServletRequest.getMethod())
                 .thenReturn("GET");
 
         /* test */
-        final ResponseEntity<List<Map<String, Object>>> response = tableEndpoint.getData(DATABASE_3_ID, TABLE_8_ID, null, null, null, httpServletRequest, null);
+        final ResponseEntity<List<Map<String, Object>>> response = tableEndpoint.getData(DATABASE_1_ID, TABLE_4_ID, null, null, null, httpServletRequest, null);
         assertEquals(HttpStatus.OK, response.getStatusCode());
 
     }
@@ -309,17 +319,19 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(tableService.getCount(eq(TABLE_8_PRIVILEGED_DTO), any(Instant.class)))
+        when(credentialService.getTable(DATABASE_2_ID, TABLE_5_ID))
+                .thenReturn(TABLE_5_DTO);
+        when(credentialService.getDatabase(DATABASE_2_ID))
+                .thenReturn(DATABASE_2_PRIVILEGED_DTO);
+        when(tableService.getCount(any(DatabaseDto.class), any(TableDto.class), any(Instant.class)))
                 .thenReturn(3L);
-        when(subsetService.getData(eq(DATABASE_3_PRIVILEGED_DTO), anyString()))
+        when(subsetService.getData(eq(DATABASE_2_DTO), anyString()))
                 .thenReturn(mock);
         when(httpServletRequest.getMethod())
                 .thenReturn("HEAD");
 
         /* test */
-        final ResponseEntity<List<Map<String, Object>>> response = tableEndpoint.getData(DATABASE_3_ID, TABLE_8_ID, null, null, null, httpServletRequest, null);
+        final ResponseEntity<List<Map<String, Object>>> response = tableEndpoint.getData(DATABASE_2_ID, TABLE_5_ID, null, null, null, httpServletRequest, null);
         assertEquals(HttpStatus.OK, response.getStatusCode());
         assertNotNull(response.getHeaders().get("Access-Control-Expose-Headers"));
         assertEquals("X-Count", response.getHeaders().get("Access-Control-Expose-Headers").get(0));
@@ -335,7 +347,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
@@ -350,7 +362,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_2_ID);
@@ -361,16 +373,33 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         });
     }
 
+    @Test
+    @WithAnonymousUser
+    public void getData_notAllowed_fails() throws TableNotFoundException, RemoteUnavailableException,
+            MetadataServiceException{
+
+        /* mock */
+        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
+                .thenReturn(TABLE_8_DTO);
+        when(httpServletRequest.getMethod())
+                .thenReturn("GET");
+
+        /* test */
+        assertThrows(NotAllowedException.class, () -> {
+            tableEndpoint.getData(DATABASE_3_ID, TABLE_8_ID, null, null, null, httpServletRequest, null);
+        });
+    }
+
     @Test
     @WithAnonymousUser
     public void getData_unavailable_fails() throws TableNotFoundException, RemoteUnavailableException,
             MetadataServiceException, QueryMalformedException, DatabaseNotFoundException {
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(credentialService.getDatabase(DATABASE_3_ID))
-                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        when(credentialService.getTable(DATABASE_2_ID, TABLE_5_ID))
+                .thenReturn(TABLE_5_DTO);
+        when(credentialService.getDatabase(DATABASE_2_ID))
+                .thenReturn(DATABASE_2_DTO);
         doThrow(QueryMalformedException.class)
                 .when(subsetService)
                 .getData(any(DatabaseDto.class), anyString());
@@ -379,7 +408,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
-            tableEndpoint.getData(DATABASE_3_ID, TABLE_8_ID, null, null, null, httpServletRequest, null);
+            tableEndpoint.getData(DATABASE_2_ID, TABLE_5_ID, null, null, null, httpServletRequest, null);
         });
     }
 
@@ -390,7 +419,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
         doThrow(RemoteUnavailableException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_2_ID);
@@ -411,7 +440,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
         when(credentialService.getDatabase(DATABASE_1_ID))
                 .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
@@ -446,7 +475,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
             TableMalformedException, NotAllowedException, QueryMalformedException, RemoteUnavailableException,
-            SQLException, StorageUnavailableException, StorageNotFoundException, MetadataServiceException {
+            SQLException, StorageUnavailableException, StorageNotFoundException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -456,12 +485,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .createTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .createTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -473,7 +504,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_3_USERNAME)
-    public void insertRawTuple_noRole_fails() {
+    public void insertRawTuple_noRole_fails() throws DatabaseNotFoundException, RemoteUnavailableException,
+            MetadataServiceException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -481,6 +513,10 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
                 }})
                 .build();
 
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
             tableEndpoint.insertRawTuple(DATABASE_3_ID, TABLE_8_ID, request, USER_3_PRINCIPAL, TOKEN_ACCESS_TOKEN);
@@ -490,7 +526,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_tableNotFound_fails() throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -499,6 +535,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
                 .build();
 
         /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         doThrow(TableNotFoundException.class)
                 .when(credentialService)
                 .getTable(DATABASE_3_ID, TABLE_8_ID);
@@ -512,7 +550,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_readAccess_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -522,7 +560,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_READ_ACCESS_DTO);
 
@@ -536,7 +576,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_unavailable_fails() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, MetadataServiceException, TableMalformedException, StorageUnavailableException,
-            SQLException, QueryMalformedException, StorageNotFoundException {
+            SQLException, QueryMalformedException, StorageNotFoundException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -546,12 +586,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .createTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .createTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -563,7 +605,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_writeOwnAccess_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, DatabaseUnavailableException, TableMalformedException, QueryMalformedException,
-            StorageUnavailableException, StorageNotFoundException, MetadataServiceException {
+            StorageUnavailableException, StorageNotFoundException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -573,7 +615,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
 
@@ -584,7 +628,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void insertRawTuple_writeOwnAccessForeign_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -594,7 +638,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
 
@@ -606,9 +652,10 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
-    public void insertRawTuple_writeAllAccessForeign_succeeds() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, DatabaseUnavailableException, TableMalformedException, QueryMalformedException,
-            StorageUnavailableException, StorageNotFoundException, MetadataServiceException {
+    public void insertRawTuple_writeAllAccessForeign_succeeds() throws TableNotFoundException,
+            RemoteUnavailableException, NotAllowedException, DatabaseUnavailableException, TableMalformedException,
+            QueryMalformedException, StorageUnavailableException, StorageNotFoundException, MetadataServiceException,
+            DatabaseNotFoundException {
         final TupleDto request = TupleDto.builder()
                 .data(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 7L);
@@ -618,7 +665,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
 
@@ -630,7 +679,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
             TableMalformedException, NotAllowedException, QueryMalformedException, RemoteUnavailableException,
-            SQLException, MetadataServiceException {
+            SQLException, MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -643,12 +692,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .updateTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .updateTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -660,7 +711,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_3_USERNAME)
-    public void updateTuple_noRole_fails() {
+    public void updateTuple_noRole_fails() throws DatabaseNotFoundException, RemoteUnavailableException,
+            MetadataServiceException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -671,6 +723,10 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
                 }})
                 .build();
 
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
             tableEndpoint.updateRawTuple(DATABASE_3_ID, TABLE_8_ID, request, USER_3_PRINCIPAL, TOKEN_ACCESS_TOKEN);
@@ -680,7 +736,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_tableNotFound_fails() throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -692,6 +748,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
                 .build();
 
         /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         doThrow(TableNotFoundException.class)
                 .when(credentialService)
                 .getTable(DATABASE_3_ID, TABLE_8_ID);
@@ -705,7 +763,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_readAccess_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -718,7 +776,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_READ_ACCESS_DTO);
 
@@ -731,7 +791,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_unavailable_fails() throws TableNotFoundException, RemoteUnavailableException, SQLException,
-            NotAllowedException, MetadataServiceException, TableMalformedException, QueryMalformedException {
+            NotAllowedException, MetadataServiceException, TableMalformedException, QueryMalformedException,
+            DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -744,12 +805,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .updateTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .updateTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -761,7 +824,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_writeOwnAccess_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
             TableMalformedException, NotAllowedException, QueryMalformedException, RemoteUnavailableException,
-            SQLException, MetadataServiceException {
+            SQLException, MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -774,12 +837,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .updateTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .updateTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -789,10 +854,84 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         assertEquals(HttpStatus.ACCEPTED, response.getStatusCode());
     }
 
+    @Test
+    @WithMockUser(username = USER_1_USERNAME, authorities = {"system"})
+    public void update_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
+            TableMalformedException, RemoteUnavailableException, SQLException, MetadataServiceException,
+            DatabaseNotFoundException {
+
+        /* mock */
+        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        doNothing()
+                .when(tableService)
+                .updateTable(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, TABLE_8_UPDATE_DTO);
+
+        /* test */
+        final ResponseEntity<TableDto> response = tableEndpoint.update(DATABASE_3_ID, TABLE_8_ID, TABLE_8_UPDATE_DTO);
+        assertEquals(HttpStatus.ACCEPTED, response.getStatusCode());
+    }
+
+    @Test
+    @WithMockUser(username = USER_1_USERNAME, authorities = {"system"})
+    public void update_tableNotFound_fails() throws TableNotFoundException, RemoteUnavailableException,
+            MetadataServiceException, DatabaseNotFoundException {
+
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        doThrow(TableNotFoundException.class)
+                .when(credentialService)
+                .getTable(DATABASE_3_ID, TABLE_8_ID);
+
+        /* test */
+        assertThrows(TableNotFoundException.class, () -> {
+            tableEndpoint.update(DATABASE_3_ID, TABLE_8_ID, TABLE_8_UPDATE_DTO);
+        });
+    }
+
+    @Test
+    @WithMockUser(username = USER_1_USERNAME, authorities = {"system"})
+    public void update_unavailable_fails() throws TableNotFoundException, RemoteUnavailableException,
+            MetadataServiceException, DatabaseNotFoundException {
+
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        doThrow(RemoteUnavailableException.class)
+                .when(credentialService)
+                .getTable(DATABASE_3_ID, TABLE_8_ID);
+
+        /* test */
+        assertThrows(RemoteUnavailableException.class, () -> {
+            tableEndpoint.update(DATABASE_3_ID, TABLE_8_ID, TABLE_8_UPDATE_DTO);
+        });
+    }
+
+    @Test
+    @WithMockUser(username = USER_1_USERNAME, authorities = {"system"})
+    public void update_exception_fails() throws TableNotFoundException, RemoteUnavailableException,
+            MetadataServiceException, DatabaseNotFoundException {
+
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        doThrow(MetadataServiceException.class)
+                .when(credentialService)
+                .getTable(DATABASE_3_ID, TABLE_8_ID);
+
+        /* test */
+        assertThrows(MetadataServiceException.class, () -> {
+            tableEndpoint.update(DATABASE_3_ID, TABLE_8_ID, TABLE_8_UPDATE_DTO);
+        });
+    }
+
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_writeOwnAccessForeign_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -805,7 +944,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
 
@@ -819,7 +960,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void updateTuple_writeAllAccessForeign_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, DatabaseUnavailableException, TableMalformedException, QueryMalformedException,
-            SQLException, MetadataServiceException {
+            SQLException, MetadataServiceException, DatabaseNotFoundException {
         final TupleUpdateDto request = TupleUpdateDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -832,12 +973,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .updateTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .updateTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -851,7 +994,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
             TableMalformedException, NotAllowedException, QueryMalformedException, RemoteUnavailableException,
-            SQLException, MetadataServiceException {
+            SQLException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -860,12 +1003,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .deleteTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .deleteTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -877,13 +1022,18 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_3_USERNAME)
-    public void deleteTuple_noRole_fails() {
+    public void deleteTuple_noRole_fails() throws DatabaseNotFoundException, RemoteUnavailableException,
+            MetadataServiceException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
                 }})
                 .build();
 
+        /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
             tableEndpoint.deleteRawTuple(DATABASE_3_ID, TABLE_8_ID, request, USER_3_PRINCIPAL, TOKEN_ACCESS_TOKEN);
@@ -893,7 +1043,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_tableNotFound_fails() throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -901,6 +1051,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
                 .build();
 
         /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         doThrow(TableNotFoundException.class)
                 .when(credentialService)
                 .getTable(DATABASE_3_ID, TABLE_8_ID);
@@ -914,7 +1066,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_readAccess_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -923,7 +1075,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_READ_ACCESS_DTO);
 
@@ -936,7 +1090,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_unavailable_fails() throws TableNotFoundException, RemoteUnavailableException, SQLException,
-            NotAllowedException, MetadataServiceException, TableMalformedException, QueryMalformedException {
+            NotAllowedException, MetadataServiceException, TableMalformedException, QueryMalformedException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -945,12 +1099,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .deleteTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .deleteTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -962,7 +1118,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_writeOwnAccess_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, TableMalformedException, SQLException, QueryMalformedException,
-            DatabaseUnavailableException, MetadataServiceException {
+            DatabaseUnavailableException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -971,12 +1127,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .deleteTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .deleteTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -989,7 +1147,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_writeOwnAccessForeign_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -998,7 +1156,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
 
@@ -1012,7 +1172,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"delete-table-data"})
     public void deleteTuple_writeAllAccessForeign_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, DatabaseUnavailableException, TableMalformedException, QueryMalformedException,
-            SQLException, MetadataServiceException {
+            SQLException, MetadataServiceException, DatabaseNotFoundException {
         final TupleDeleteDto request = TupleDeleteDto.builder()
                 .keys(new HashMap<>() {{
                     put(COLUMN_8_1_INTERNAL_NAME, 6L);
@@ -1021,12 +1181,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .deleteTuple(TABLE_8_PRIVILEGED_DTO, request);
+                .deleteTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -1039,27 +1201,31 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithAnonymousUser
     public void getHistory_succeeds() throws DatabaseUnavailableException, TableNotFoundException,
-            RemoteUnavailableException, SQLException, NotAllowedException, MetadataServiceException, PaginationException {
+            RemoteUnavailableException, SQLException, NotAllowedException, MetadataServiceException, PaginationException, DatabaseNotFoundException {
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(tableService.history(TABLE_8_PRIVILEGED_DTO, null))
+        when(credentialService.getTable(DATABASE_2_ID, TABLE_5_ID))
+                .thenReturn(TABLE_5_DTO);
+        when(credentialService.getDatabase(DATABASE_2_ID))
+                .thenReturn(DATABASE_2_PRIVILEGED_DTO);
+        when(tableService.history(DATABASE_2_PRIVILEGED_DTO, TABLE_5_DTO, null))
                 .thenReturn(List.of());
 
         /* test */
-        final ResponseEntity<List<TableHistoryDto>> response = tableEndpoint.getHistory(DATABASE_3_ID, TABLE_8_ID, null, null);
+        final ResponseEntity<List<TableHistoryDto>> response = tableEndpoint.getHistory(DATABASE_2_ID, TABLE_5_ID, null, null);
         assertEquals(HttpStatus.OK, response.getStatusCode());
     }
 
     @Test
     @WithAnonymousUser
     public void getHistory_privateNoRole_fails() throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
@@ -1081,11 +1247,13 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_4_USERNAME)
     public void getHistory_privateNoAccess_fails() throws NotAllowedException, RemoteUnavailableException,
-            TableNotFoundException, MetadataServiceException {
+            TableNotFoundException, MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_4_ID);
@@ -1099,14 +1267,15 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_2_USERNAME)
     public void getHistory_private_succeeds() throws NotAllowedException, RemoteUnavailableException, SQLException,
-            TableNotFoundException, MetadataServiceException, DatabaseUnavailableException, PaginationException {
+            TableNotFoundException, MetadataServiceException, DatabaseUnavailableException, PaginationException,
+            DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(DATABASE_1_USER_2_READ_ACCESS_DTO);
-        when(tableService.history(TABLE_1_PRIVILEGED_DTO, 10L))
+        when(tableService.history(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, 10L))
                 .thenReturn(List.of());
 
         /* test */
@@ -1117,27 +1286,31 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithAnonymousUser
     public void getHistory_unavailable_succeeds() throws RemoteUnavailableException, SQLException,
-            TableNotFoundException, MetadataServiceException {
+            TableNotFoundException, MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+        when(credentialService.getTable(DATABASE_2_ID, TABLE_5_ID))
+                .thenReturn(TABLE_5_DTO);
+        when(credentialService.getDatabase(DATABASE_2_ID))
+                .thenReturn(DATABASE_2_PRIVILEGED_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .history(TABLE_8_PRIVILEGED_DTO, 100L);
+                .history(any(DatabaseDto.class), any(TableDto.class), anyLong());
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
-            tableEndpoint.getHistory(DATABASE_3_ID, TABLE_8_ID, null, null);
+            tableEndpoint.getHistory(DATABASE_2_ID, TABLE_5_ID, null, null);
         });
     }
 
     @Test
     @WithAnonymousUser
     public void getHistory_tableNotFound_fails() throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         doThrow(TableNotFoundException.class)
                 .when(credentialService)
                 .getTable(DATABASE_3_ID, TABLE_8_ID);
@@ -1155,15 +1328,15 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         final Dataset<Row> mock = sparkSession.emptyDataFrame();
 
         /* mock */
-        when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
-        when(credentialService.getDatabase(DATABASE_3_ID))
-                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+        when(credentialService.getTable(DATABASE_1_ID, TABLE_4_ID))
+                .thenReturn(TABLE_4_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
 
         /* test */
-        final ResponseEntity<InputStreamResource> response = tableEndpoint.exportDataset(DATABASE_3_ID, TABLE_8_ID, null, null);
+        final ResponseEntity<InputStreamResource> response = tableEndpoint.exportDataset(DATABASE_1_ID, TABLE_4_ID, null, null);
         assertEquals(HttpStatus.OK, response.getStatusCode());
     }
 
@@ -1177,11 +1350,13 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(access);
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
                 .thenReturn(mock);
 
@@ -1193,11 +1368,13 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_4_USERNAME)
     public void exportData_privateNoAccess_fails() throws TableNotFoundException, NotAllowedException,
-            RemoteUnavailableException, MetadataServiceException {
+            RemoteUnavailableException, MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_4_ID);
@@ -1216,9 +1393,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_3_ID))
-                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
-        when(databaseService.exploreTables(DATABASE_3_PRIVILEGED_DTO))
-                .thenReturn(List.of(TABLE_8_PRIVILEGED_DTO));
+                .thenReturn(DATABASE_3_DTO);
+        when(databaseService.exploreTables(DATABASE_3_DTO))
+                .thenReturn(List.of(TABLE_8_DTO));
 
         /* test */
         final ResponseEntity<List<TableDto>> response = tableEndpoint.getSchema(DATABASE_3_ID);
@@ -1252,10 +1429,10 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_3_ID))
-                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_3_DTO);
         doThrow(SQLException.class)
                 .when(databaseService)
-                .exploreTables(DATABASE_3_PRIVILEGED_DTO);
+                .exploreTables(DATABASE_3_DTO);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -1266,7 +1443,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_succeeds() throws TableNotFoundException, NotAllowedException, RemoteUnavailableException,
-            MetadataServiceException, StorageNotFoundException, MalformedException, StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException, SQLException, TableMalformedException {
+            MetadataServiceException, StorageNotFoundException, MalformedException, StorageUnavailableException,
+            DatabaseUnavailableException, QueryMalformedException, SQLException, TableMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination(null)
@@ -1275,12 +1454,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
         doNothing()
                 .when(tableService)
-                .importDataset(TABLE_8_PRIVILEGED_DTO, request);
+                .importDataset(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         doNothing()
                 .when(metadataServiceGateway)
                 .updateTableStatistics(DATABASE_3_ID, TABLE_8_ID, TOKEN_ACCESS_TOKEN);
@@ -1330,7 +1511,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_unavailable_fails() throws RemoteUnavailableException, TableNotFoundException,
             MetadataServiceException, NotAllowedException, StorageNotFoundException, MalformedException,
-            StorageUnavailableException, SQLException, QueryMalformedException, TableMalformedException {
+            StorageUnavailableException, SQLException, QueryMalformedException, TableMalformedException, DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1339,12 +1520,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .importDataset(any(TableDto.class), eq(request));
+                .importDataset(any(DatabaseDto.class), any(TableDto.class), eq(request));
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -1356,7 +1539,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_writeOwnAccess_fails() throws RemoteUnavailableException, TableNotFoundException,
             MetadataServiceException, NotAllowedException, StorageNotFoundException, MalformedException,
-            StorageUnavailableException, SQLException, QueryMalformedException, TableMalformedException {
+            StorageUnavailableException, SQLException, QueryMalformedException, TableMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1365,12 +1549,14 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
         doThrow(SQLException.class)
                 .when(tableService)
-                .importDataset(any(TableDto.class), eq(request));
+                .importDataset(any(DatabaseDto.class), any(TableDto.class), eq(request));
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
@@ -1381,7 +1567,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_readAccess_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1390,7 +1576,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_READ_ACCESS_DTO);
 
@@ -1404,7 +1592,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_writeOwnAccess_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, MetadataServiceException, StorageNotFoundException, MalformedException,
-            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException {
+            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1413,7 +1602,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_1_WRITE_OWN_ACCESS_DTO);
 
@@ -1424,7 +1615,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_writeOwnAccessForeign_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1433,7 +1624,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_3_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_OWN_ACCESS_DTO);
 
@@ -1447,7 +1640,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_3_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_writeAllAccessForeign_succeeds() throws TableNotFoundException,
             RemoteUnavailableException, NotAllowedException, MetadataServiceException, StorageNotFoundException,
-            MalformedException, StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException {
+            MalformedException, StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1456,7 +1650,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_3_ID, TABLE_8_ID))
-                .thenReturn(TABLE_8_PRIVILEGED_DTO);
+                .thenReturn(TABLE_8_DTO);
+        when(credentialService.getDatabase(DATABASE_3_ID))
+                .thenReturn(DATABASE_3_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_3_ID, USER_1_ID))
                 .thenReturn(DATABASE_3_USER_3_WRITE_ALL_ACCESS_DTO);
 
@@ -1468,7 +1664,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_2_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_privateForeign_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, MetadataServiceException, StorageNotFoundException, MalformedException,
-            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException {
+            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1477,7 +1674,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(DATABASE_1_USER_2_WRITE_ALL_ACCESS_DTO);
 
@@ -1489,7 +1688,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_2_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_private_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             NotAllowedException, MetadataServiceException, StorageNotFoundException, MalformedException,
-            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException {
+            StorageUnavailableException, DatabaseUnavailableException, QueryMalformedException,
+            DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1498,7 +1698,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_2_ID))
-                .thenReturn(TABLE_2_PRIVILEGED_DTO);
+                .thenReturn(TABLE_2_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(DATABASE_1_USER_2_WRITE_OWN_ACCESS_DTO);
 
@@ -1509,7 +1711,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_2_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_privateForeign_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1518,7 +1720,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(DATABASE_1_USER_2_WRITE_OWN_ACCESS_DTO);
 
@@ -1531,7 +1735,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_2_USERNAME, authorities = {"insert-table-data"})
     public void importDataset_privateReadAccess_fails() throws TableNotFoundException, RemoteUnavailableException,
-            NotAllowedException, MetadataServiceException {
+            NotAllowedException, MetadataServiceException, DatabaseNotFoundException {
         final ImportDto request = ImportDto.builder()
                 .header(true)
                 .lineTermination("\\n")
@@ -1540,7 +1744,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_2_ID))
-                .thenReturn(TABLE_2_PRIVILEGED_DTO);
+                .thenReturn(TABLE_2_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_2_ID))
                 .thenReturn(DATABASE_1_USER_2_READ_ACCESS_DTO);
 
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/ViewEndpointUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/ViewEndpointUnitTest.java
index 3421ed6124c284099eca5b72796ebdfd54c928f5..0393be3dad8da280f29cc1be9133ffa42c9f6cb2 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/ViewEndpointUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/endpoint/ViewEndpointUnitTest.java
@@ -4,7 +4,7 @@ import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.endpoints.ViewEndpoint;
 import at.tuwien.exception.*;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.DatabaseService;
 import at.tuwien.service.SubsetService;
 import at.tuwien.service.ViewService;
@@ -32,6 +32,7 @@ import java.util.List;
 import java.util.Map;
 
 import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.*;
 
 @Log4j2
@@ -46,7 +47,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
     private DatabaseService databaseService;
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @MockBean
     private HttpServletRequest httpServletRequest;
@@ -68,13 +69,14 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
     public void create_succeeds() throws DatabaseNotFoundException, RemoteUnavailableException, ViewMalformedException,
-            SQLException, DatabaseUnavailableException, MetadataServiceException {
+            SQLException, DatabaseUnavailableException, MetadataServiceException, TableNotFoundException,
+            ImageNotFoundException, QueryMalformedException {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
-        when(databaseService.createView(DATABASE_1_PRIVILEGED_DTO, VIEW_1_CREATE_DTO))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
+        when(databaseService.createView(any(DatabaseDto.class), anyString(), anyString()))
+                .thenReturn(VIEW_1_DTO);
 
         /* test */
         final ResponseEntity<ViewDto> response = viewEndpoint.create(DATABASE_1_ID, VIEW_1_CREATE_DTO);
@@ -88,10 +90,10 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
         doThrow(SQLException.class)
                 .when(databaseService)
-                .createView(DATABASE_1_PRIVILEGED_DTO, VIEW_1_CREATE_DTO);
+                .createView(any(DatabaseDto.class), anyString(), anyString());
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -106,9 +108,9 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
-        when(databaseService.createView(DATABASE_1_PRIVILEGED_DTO, VIEW_1_CREATE_DTO))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
+        when(databaseService.createView(DATABASE_1_DTO, VIEW_1_NAME, VIEW_1_QUERY))
+                .thenReturn(VIEW_1_DTO);
 
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
@@ -139,8 +141,8 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
-        when(databaseService.exploreViews(DATABASE_1_PRIVILEGED_DTO))
+                .thenReturn(DATABASE_1_DTO);
+        when(databaseService.exploreViews(DATABASE_1_DTO))
                 .thenReturn(List.of(VIEW_1_DTO, VIEW_2_DTO, VIEW_3_DTO));
 
         /* test */
@@ -181,10 +183,10 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
         doThrow(SQLException.class)
                 .when(databaseService)
-                .exploreViews(DATABASE_1_PRIVILEGED_DTO);
+                .exploreViews(DATABASE_1_DTO);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -205,14 +207,16 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
     public void delete_succeeds() throws RemoteUnavailableException, ViewMalformedException, ViewNotFoundException,
-            SQLException, DatabaseUnavailableException, MetadataServiceException {
+            SQLException, DatabaseUnavailableException, MetadataServiceException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doNothing()
                 .when(viewService)
-                .delete(VIEW_1_PRIVILEGED_DTO);
+                .delete(DATABASE_1_PRIVILEGED_DTO, VIEW_1_DTO);
 
         /* test */
         final ResponseEntity<Void> response = viewEndpoint.delete(DATABASE_1_ID, VIEW_1_ID);
@@ -222,14 +226,16 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
     public void delete_unavailable_fails() throws RemoteUnavailableException, ViewMalformedException, SQLException,
-            MetadataServiceException, ViewNotFoundException {
+            MetadataServiceException, ViewNotFoundException, DatabaseNotFoundException {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doThrow(SQLException.class)
                 .when(viewService)
-                .delete(VIEW_1_PRIVILEGED_DTO);
+                .delete(DATABASE_1_PRIVILEGED_DTO, VIEW_1_DTO);
 
         /* test */
         assertThrows(DatabaseUnavailableException.class, () -> {
@@ -247,7 +253,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
                 .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         doNothing()
                 .when(viewService)
-                .delete(VIEW_1_PRIVILEGED_DTO);
+                .delete(DATABASE_1_PRIVILEGED_DTO,VIEW_1_DTO);
 
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
@@ -280,9 +286,9 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
         when(credentialService.getDatabase(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_1_ID))
                 .thenReturn(DATABASE_1_USER_1_READ_ACCESS_DTO);
         when(subsetService.getData(any(DatabaseDto.class), anyString()))
@@ -296,6 +302,31 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
         assertNotNull(response.getBody());
     }
 
+    @Test
+    @WithAnonymousUser
+    public void getData_privateDataPrivateSchemaAnonymous_fails() throws RemoteUnavailableException,
+            ViewNotFoundException, QueryMalformedException, NotAllowedException, MetadataServiceException,
+            TableNotFoundException, DatabaseNotFoundException {
+        final Dataset<Row> mock = sparkSession.emptyDataFrame();
+
+        /* mock */
+        when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
+                .thenReturn(VIEW_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+        when(credentialService.getAccess(DATABASE_1_ID, USER_1_ID))
+                .thenReturn(DATABASE_1_USER_1_READ_ACCESS_DTO);
+        when(subsetService.getData(any(DatabaseDto.class), anyString()))
+                .thenReturn(mock);
+        when(httpServletRequest.getMethod())
+                .thenReturn("GET");
+
+        /* test */
+        assertThrows(NotAllowedException.class, () -> {
+            viewEndpoint.getData(DATABASE_1_ID, VIEW_1_ID, null, null, null, httpServletRequest, null);
+        });
+    }
+
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = {"view-database-view-data"})
     public void getData_privateHead_succeeds() throws RemoteUnavailableException, ViewNotFoundException,
@@ -304,12 +335,14 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_3_ID))
-                .thenReturn(VIEW_3_PRIVILEGED_DTO);
+                .thenReturn(VIEW_3_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(credentialService.getAccess(DATABASE_1_ID, USER_1_ID))
                 .thenReturn(DATABASE_1_USER_1_READ_ACCESS_DTO);
         when(httpServletRequest.getMethod())
                 .thenReturn("HEAD");
-        when(viewService.count(eq(VIEW_3_PRIVILEGED_DTO), any(Instant.class)))
+        when(viewService.count(any(DatabaseDto.class), eq(VIEW_3_DTO), any(Instant.class)))
                 .thenReturn(VIEW_3_DATA_COUNT);
 
         /* test */
@@ -331,7 +364,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
         when(httpServletRequest.getMethod())
                 .thenReturn("GET");
         doThrow(NotAllowedException.class)
@@ -367,7 +400,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_4_ID);
@@ -385,7 +418,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_4_ID);
@@ -419,7 +452,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(credentialService.getView(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
         doThrow(NotAllowedException.class)
                 .when(credentialService)
                 .getAccess(DATABASE_1_ID, USER_4_ID);
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/gateway/MetadataServiceGatewayUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/gateway/MetadataServiceGatewayUnitTest.java
index 664e504248bb2136206817f8fabc8964fae0fdaf..d07123796c9413d8dfbaf0f9e1d80e34659b83ef 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/gateway/MetadataServiceGatewayUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/gateway/MetadataServiceGatewayUnitTest.java
@@ -51,24 +51,14 @@ public class MetadataServiceGatewayUnitTest extends AbstractUnitTest {
     @Test
     public void getTableById_succeeds() throws TableNotFoundException, RemoteUnavailableException,
             MetadataServiceException {
-        final HttpHeaders headers = new HttpHeaders();
-        headers.set("X-Username", CONTAINER_1_PRIVILEGED_USERNAME);
-        headers.set("X-Password", CONTAINER_1_PRIVILEGED_PASSWORD);
-        headers.set("X-Jdbc-Method", IMAGE_1_JDBC);
 
         /* mock */
         when(internalRestTemplate.exchange(anyString(), eq(HttpMethod.GET), eq(HttpEntity.EMPTY), eq(TableDto.class)))
                 .thenReturn(ResponseEntity.status(HttpStatus.OK)
-                        .headers(headers)
-                        .body(TABLE_1_PRIVILEGED_DTO));
+                        .body(TABLE_1_DTO));
 
         /* test */
         final TableDto response = metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID);
-        assertEquals(IMAGE_1_JDBC, response.getDatabase().getContainer().getImage().getJdbcMethod());
-        assertEquals(CONTAINER_1_HOST, response.getDatabase().getContainer().getHost());
-        assertEquals(CONTAINER_1_PORT, response.getDatabase().getContainer().getPort());
-        assertEquals(CONTAINER_1_PRIVILEGED_USERNAME, response.getDatabase().getContainer().getUsername());
-        assertEquals(CONTAINER_1_PRIVILEGED_PASSWORD, response.getDatabase().getContainer().getPassword());
         assertEquals(TABLE_1_INTERNAL_NAME, response.getInternalName());
     }
 
@@ -106,7 +96,7 @@ public class MetadataServiceGatewayUnitTest extends AbstractUnitTest {
         /* mock */
         when(internalRestTemplate.exchange(anyString(), eq(HttpMethod.GET), eq(HttpEntity.EMPTY), eq(TableDto.class)))
                 .thenReturn(ResponseEntity.status(HttpStatus.NO_CONTENT)
-                        .body(TABLE_1_PRIVILEGED_DTO));
+                        .body(TABLE_1_DTO));
 
         /* test */
         assertThrows(MetadataServiceException.class, () -> {
@@ -114,27 +104,6 @@ public class MetadataServiceGatewayUnitTest extends AbstractUnitTest {
         });
     }
 
-    @Test
-    public void getTableById_headerMissing_fails() {
-        final List<String> customHeaders = List.of("X-Username", "X-Password");
-
-        for (int i = 0; i < customHeaders.size(); i++) {
-            final HttpHeaders headers = new HttpHeaders();
-            for (int j = 0; j < i; j++) {
-                headers.add(customHeaders.get(j), "");
-            }
-            /* mock */
-            when(internalRestTemplate.exchange(anyString(), eq(HttpMethod.GET), eq(HttpEntity.EMPTY), eq(TableDto.class)))
-                    .thenReturn(ResponseEntity.status(HttpStatus.OK)
-                            .headers(headers)
-                            .body(TABLE_1_PRIVILEGED_DTO));
-            /* test */
-            assertThrows(MetadataServiceException.class, () -> {
-                metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID);
-            });
-        }
-    }
-
     @Test
     public void getTableById_emptyBody_fails() {
         final HttpHeaders headers = new HttpHeaders();
@@ -354,16 +323,11 @@ public class MetadataServiceGatewayUnitTest extends AbstractUnitTest {
 
     @Test
     public void getViewById_succeeds() throws RemoteUnavailableException, ViewNotFoundException, MetadataServiceException {
-        final HttpHeaders headers = new HttpHeaders();
-        headers.set("X-Username", CONTAINER_1_PRIVILEGED_USERNAME);
-        headers.set("X-Password", CONTAINER_1_PRIVILEGED_PASSWORD);
-        headers.set("X-Jdbc-Method", IMAGE_1_JDBC);
 
         /* mock */
         when(internalRestTemplate.exchange(anyString(), eq(HttpMethod.GET), any(HttpEntity.class), eq(ViewDto.class)))
                 .thenReturn(ResponseEntity.ok()
-                        .headers(headers)
-                        .body(VIEW_1_PRIVILEGED_DTO));
+                        .body(VIEW_1_DTO));
 
         /* test */
         final ViewDto response = metadataServiceGateway.getViewById(CONTAINER_1_ID, VIEW_1_ID);
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerIntegrationTest.java
index bca5e1141082e320fe1bef132335fea7e30b7be3..bf63189bf22e08a6c6c46df6623ef1a782345b98 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerIntegrationTest.java
@@ -2,10 +2,11 @@ package at.tuwien.listener;
 
 import at.tuwien.config.MariaDbConfig;
 import at.tuwien.config.MariaDbContainerConfig;
+import at.tuwien.exception.DatabaseNotFoundException;
 import at.tuwien.exception.MetadataServiceException;
 import at.tuwien.exception.RemoteUnavailableException;
 import at.tuwien.exception.TableNotFoundException;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
 import org.junit.jupiter.api.BeforeEach;
@@ -42,7 +43,7 @@ import static org.mockito.Mockito.when;
 public class DefaultListenerIntegrationTest extends AbstractUnitTest {
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @Autowired
     private DefaultListener defaultListener;
@@ -58,17 +59,19 @@ public class DefaultListenerIntegrationTest extends AbstractUnitTest {
         genesis();
         /* database */
         MariaDbConfig.dropAllDatabases(CONTAINER_1_PRIVILEGED_DTO);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
     public void onMessage_succeeds(CapturedOutput output) throws TableNotFoundException, RemoteUnavailableException,
-            MetadataServiceException {
+            MetadataServiceException, DatabaseNotFoundException {
         final Message request = buildMessage("dbrepo." + DATABASE_1_ID + "." + TABLE_1_ID, "{\"id\":4,\"date\":\"2023-10-03\",\"mintemp\":15.0,\"rainfall\":0.2}", new HashMap<>());
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
 
         /* test */
         defaultListener.onMessage(request);
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerUnitTest.java
index 120f5936808a7bafab30f28a7b21149077a7954f..686a134dc56f5c118a5e25b2cb0150eb05ac47fd 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/listener/DefaultListenerUnitTest.java
@@ -2,10 +2,11 @@ package at.tuwien.listener;
 
 import at.tuwien.config.MariaDbConfig;
 import at.tuwien.config.MariaDbContainerConfig;
+import at.tuwien.exception.DatabaseNotFoundException;
 import at.tuwien.exception.MetadataServiceException;
 import at.tuwien.exception.RemoteUnavailableException;
 import at.tuwien.exception.TableNotFoundException;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
 import org.junit.jupiter.api.BeforeEach;
@@ -38,7 +39,7 @@ import static org.mockito.Mockito.when;
 public class DefaultListenerUnitTest extends AbstractUnitTest {
 
     @MockBean
-    private CredentialService credentialService;
+    private CacheService credentialService;
 
     @Autowired
     private DefaultListener defaultListener;
@@ -54,7 +55,7 @@ public class DefaultListenerUnitTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropAllDatabases(CONTAINER_1_PRIVILEGED_DTO);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
@@ -77,12 +78,14 @@ public class DefaultListenerUnitTest extends AbstractUnitTest {
 
     @Test
     public void onMessage_messageMalformed_fails(CapturedOutput output) throws TableNotFoundException,
-            RemoteUnavailableException, MetadataServiceException {
+            RemoteUnavailableException, MetadataServiceException, DatabaseNotFoundException {
         final Message request = buildMessage(TABLE_1_ROUTING_KEY, "{,}", new HashMap<>());
 
         /* mock */
         when(credentialService.getTable(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
+        when(credentialService.getDatabase(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
 
         /* test */
         defaultListener.onMessage(request);
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/mvc/PrometheusEndpointMvcTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/mvc/PrometheusEndpointMvcTest.java
index dacc80acceec164a6c61f50ec3d9a069b5807aad..ae03fdbf68cefc1db05455d0ec228ea00be1c12f 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/mvc/PrometheusEndpointMvcTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/mvc/PrometheusEndpointMvcTest.java
@@ -2,6 +2,7 @@ package at.tuwien.mvc;
 
 import at.tuwien.api.database.query.ExecuteStatementDto;
 import at.tuwien.api.database.query.ImportDto;
+import at.tuwien.api.database.query.QueryDto;
 import at.tuwien.api.database.query.QueryPersistDto;
 import at.tuwien.api.database.table.TupleDeleteDto;
 import at.tuwien.api.database.table.TupleDto;
@@ -110,7 +111,7 @@ public class PrometheusEndpointMvcTest extends AbstractUnitTest {
             /* ignore */
         }
         try {
-            subsetEndpoint.create(DATABASE_1_ID, ExecuteStatementDto.builder().statement(QUERY_5_STATEMENT).build(), USER_1_PRINCIPAL, httpServletRequest, null, 0L, 10L);
+            subsetEndpoint.create(DATABASE_1_ID, QUERY_1_SUBSET_DTO, USER_1_PRINCIPAL, httpServletRequest, null, 0L, 10L);
         } catch (Exception e) {
             /* ignore */
         }
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/AccessServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/AccessServiceIntegrationTest.java
index 2c174e0a3da88a30e2e8ed8d739cf0200fd5a237..abcfd4a175b2cd62cc8fef73c4f9627bc2077d62 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/AccessServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/AccessServiceIntegrationTest.java
@@ -45,7 +45,7 @@ public class AccessServiceIntegrationTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/CredentialServiceUnitTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/CredentialServiceUnitTest.java
index 764dd92af3be5ea185b7e7ef319fde19a5e794af..95121ad704006cd814cf4962597e6382bc72b284 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/CredentialServiceUnitTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/CredentialServiceUnitTest.java
@@ -8,7 +8,7 @@ import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.user.UserDto;
 import at.tuwien.exception.*;
 import at.tuwien.gateway.MetadataServiceGateway;
-import at.tuwien.service.impl.CredentialServiceImpl;
+import at.tuwien.service.impl.CacheServiceImpl;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
 import org.junit.jupiter.api.BeforeEach;
@@ -30,7 +30,7 @@ import static org.mockito.Mockito.when;
 public class CredentialServiceUnitTest extends AbstractUnitTest {
 
     @Autowired
-    private CredentialServiceImpl credentialService;
+    private CacheServiceImpl credentialService;
 
     @MockBean
     private MetadataServiceGateway metadataServiceGateway;
@@ -48,7 +48,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getDatabaseById(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_1_DTO);
 
         /* test */
         final DatabaseDto response = credentialService.getDatabase(DATABASE_1_ID);
@@ -62,7 +62,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getDatabaseById(DATABASE_1_ID))
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO)
+                .thenReturn(DATABASE_1_DTO)
                 .thenThrow(RuntimeException.class) /* should never be thrown */;
         credentialService.getDatabase(DATABASE_1_ID);
 
@@ -78,8 +78,8 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getDatabaseById(DATABASE_1_ID))
-                .thenReturn(DATABASE_2_PRIVILEGED_DTO) /* needs to be different id for test case */
-                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
+                .thenReturn(DATABASE_2_DTO) /* needs to be different id for test case */
+                .thenReturn(DATABASE_1_DTO);
 
         /* pre-condition */
         final DatabaseDto tmp = credentialService.getDatabase(DATABASE_1_ID);
@@ -98,7 +98,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getContainerById(CONTAINER_1_ID))
-                .thenReturn(CONTAINER_1_PRIVILEGED_DTO);
+                .thenReturn(CONTAINER_1_DTO);
 
         /* test */
         final ContainerDto response = credentialService.getContainer(CONTAINER_1_ID);
@@ -128,8 +128,8 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getContainerById(CONTAINER_1_ID))
-                .thenReturn(CONTAINER_2_PRIVILEGED_DTO) /* needs to be different id for test case */
-                .thenReturn(CONTAINER_1_PRIVILEGED_DTO);
+                .thenReturn(CONTAINER_2_DTO) /* needs to be different id for test case */
+                .thenReturn(CONTAINER_1_DTO);
 
         /* pre-condition */
         final ContainerDto tmp = credentialService.getContainer(CONTAINER_1_ID);
@@ -251,7 +251,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
 
         /* test */
         final TableDto response = credentialService.getTable(DATABASE_1_ID, TABLE_1_ID);
@@ -265,7 +265,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO)
+                .thenReturn(TABLE_1_DTO)
                 .thenThrow(RuntimeException.class) /* should never be thrown */;
         credentialService.getTable(DATABASE_1_ID, TABLE_1_ID);
 
@@ -281,8 +281,8 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_2_PRIVILEGED_DTO) /* needs to be different id for test case */
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_2_DTO) /* needs to be different id for test case */
+                .thenReturn(TABLE_1_DTO);
 
         /* pre-condition */
         final TableDto tmp = credentialService.getTable(DATABASE_1_ID, TABLE_1_ID);
@@ -301,7 +301,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getViewById(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_1_DTO);
 
         /* test */
         final ViewDto response = credentialService.getView(DATABASE_1_ID, VIEW_1_ID);
@@ -314,7 +314,7 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getViewById(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_1_PRIVILEGED_DTO)
+                .thenReturn(VIEW_1_DTO)
                 .thenThrow(RuntimeException.class) /* should never be thrown */;
         credentialService.getView(DATABASE_1_ID, VIEW_1_ID);
 
@@ -330,8 +330,8 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
 
         /* mock */
         when(metadataServiceGateway.getViewById(DATABASE_1_ID, VIEW_1_ID))
-                .thenReturn(VIEW_2_PRIVILEGED_DTO) /* needs to be different id for test case */
-                .thenReturn(VIEW_1_PRIVILEGED_DTO);
+                .thenReturn(VIEW_2_DTO) /* needs to be different id for test case */
+                .thenReturn(VIEW_1_DTO);
 
         /* pre-condition */
         final ViewDto tmp = credentialService.getView(DATABASE_1_ID, VIEW_1_ID);
@@ -344,26 +344,4 @@ public class CredentialServiceUnitTest extends AbstractUnitTest {
         assertEquals(VIEW_1_ID, response.getId());
     }
 
-    @Test
-    public void invalidateAccess_succeeds() throws NotAllowedException, RemoteUnavailableException,
-            MetadataServiceException {
-
-        /* mock */
-        when(metadataServiceGateway.getAccess(DATABASE_1_ID, USER_1_ID))
-                .thenReturn(DATABASE_1_USER_1_READ_ACCESS_DTO)
-                .thenThrow(RuntimeException.class);
-
-        /* pre-condition */
-        final DatabaseAccessDto response = credentialService.getAccess(DATABASE_1_ID, USER_1_ID);
-        assertNotNull(response);
-
-        /* test */
-        credentialService.invalidateAccess(DATABASE_1_ID);
-
-        /* post-condition */
-        assertThrows(RuntimeException.class, () -> {
-            credentialService.getAccess(DATABASE_1_ID, USER_1_ID);
-        });
-    }
-
 }
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/DatabaseServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/DatabaseServiceIntegrationTest.java
index 5d0a95ed89cb8689106e34ec69449b8383667df1..40fdb982ab062bb502597e899ac04caec496b564 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/DatabaseServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/DatabaseServiceIntegrationTest.java
@@ -63,9 +63,9 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_2_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_2_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_2_PRIVILEGED_DTO);
         Thread.sleep(1000) /* wait for test container some more */;
     }
 
@@ -73,7 +73,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
     public void createView_succeeds() throws SQLException, ViewMalformedException {
 
         /* test */
-        databaseService.createView(DATABASE_1_PRIVILEGED_DTO, VIEW_1_CREATE_DTO);
+        databaseService.createView(DATABASE_1_PRIVILEGED_DTO, VIEW_1_NAME, VIEW_1_QUERY);
     }
 
     @Test
@@ -84,7 +84,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final ViewDto view0 = response.get(0);
         assertEquals("not_in_metadata_db2", view0.getName());
         assertEquals("not_in_metadata_db2", view0.getInternalName());
-        assertEquals(DATABASE_1_ID, view0.getVdbid());
+        assertEquals(DATABASE_1_ID, view0.getDatabaseId());
         assertEquals(USER_1_BRIEF_DTO, view0.getOwner());
         assertFalse(view0.getIsInitialView());
         assertEquals(DATABASE_1_PUBLIC, view0.getIsPublic());
@@ -149,7 +149,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto response = databaseService.inspectTable(DATABASE_1_PRIVILEGED_DTO, "not_in_metadata_db");
         assertEquals("not_in_metadata_db", response.getInternalName());
         assertEquals("not_in_metadata_db", response.getName());
-        assertEquals(DATABASE_1_ID, response.getTdbid());
+        assertEquals(DATABASE_1_ID, response.getDatabaseId());
         assertTrue(response.getIsVersioned());
         assertEquals(DATABASE_1_PUBLIC, response.getIsPublic());
         final List<ColumnDto> columns = response.getColumns();
@@ -185,7 +185,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto response = databaseService.inspectTable(DATABASE_2_PRIVILEGED_DTO, "experiments");
         assertEquals("experiments", response.getInternalName());
         assertEquals("experiments", response.getName());
-        assertEquals(DATABASE_2_ID, response.getTdbid());
+        assertEquals(DATABASE_2_ID, response.getDatabaseId());
         assertTrue(response.getIsVersioned());
         assertEquals(DATABASE_2_PUBLIC, response.getIsPublic());
         assertNotNull(response.getOwner());
@@ -218,7 +218,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto response = databaseService.inspectTable(DATABASE_1_PRIVILEGED_DTO, "weather_aus");
         assertEquals("weather_aus", response.getInternalName());
         assertEquals("weather_aus", response.getName());
-        assertEquals(DATABASE_1_ID, response.getTdbid());
+        assertEquals(DATABASE_1_ID, response.getDatabaseId());
         assertTrue(response.getIsVersioned());
         assertEquals(DATABASE_1_PUBLIC, response.getIsPublic());
         assertNotNull(response.getOwner());
@@ -438,7 +438,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final ViewDto response = databaseService.inspectView(DATABASE_1_PRIVILEGED_DTO, "not_in_metadata_db2");
         assertEquals("not_in_metadata_db2", response.getInternalName());
         assertEquals("not_in_metadata_db2", response.getName());
-        assertEquals(DATABASE_1_ID, response.getVdbid());
+        assertEquals(DATABASE_1_ID, response.getDatabaseId());
         assertEquals(USER_1_BRIEF_DTO, response.getOwner());
         assertFalse(response.getIsInitialView());
         assertEquals(DATABASE_1_PUBLIC, response.getIsPublic());
@@ -472,7 +472,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto table0 = response.get(0);
         Assertions.assertEquals("complex_foreign_keys", table0.getInternalName());
         Assertions.assertEquals("complex_foreign_keys", table0.getName());
-        Assertions.assertEquals(DATABASE_1_ID, table0.getTdbid());
+        Assertions.assertEquals(DATABASE_1_ID, table0.getDatabaseId());
         assertTrue(table0.getIsVersioned());
         Assertions.assertEquals(DATABASE_1_PUBLIC, table0.getIsPublic());
         final List<ColumnDto> columns0 = table0.getColumns();
@@ -519,7 +519,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto table1 = response.get(1);
         Assertions.assertEquals("complex_primary_key", table1.getInternalName());
         Assertions.assertEquals("complex_primary_key", table1.getName());
-        Assertions.assertEquals(DATABASE_1_ID, table1.getTdbid());
+        Assertions.assertEquals(DATABASE_1_ID, table1.getDatabaseId());
         assertTrue(table1.getIsVersioned());
         Assertions.assertEquals(DATABASE_1_PUBLIC, table1.getIsPublic());
         final List<ColumnDto> columns1 = table1.getColumns();
@@ -547,7 +547,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto table2 = response.get(2);
         Assertions.assertEquals("exotic_boolean", table2.getInternalName());
         Assertions.assertEquals("exotic_boolean", table2.getName());
-        Assertions.assertEquals(DATABASE_1_ID, table2.getTdbid());
+        Assertions.assertEquals(DATABASE_1_ID, table2.getDatabaseId());
         assertTrue(table2.getIsVersioned());
         Assertions.assertEquals(DATABASE_1_PUBLIC, table2.getIsPublic());
         final List<ColumnDto> columns2 = table2.getColumns();
@@ -568,7 +568,7 @@ public class DatabaseServiceIntegrationTest extends AbstractUnitTest {
         final TableDto table3 = response.get(3);
         Assertions.assertEquals("not_in_metadata_db", table3.getInternalName());
         Assertions.assertEquals("not_in_metadata_db", table3.getName());
-        Assertions.assertEquals(DATABASE_1_ID, table3.getTdbid());
+        Assertions.assertEquals(DATABASE_1_ID, table3.getDatabaseId());
         assertTrue(table3.getIsVersioned());
         Assertions.assertEquals(DATABASE_1_PUBLIC, table3.getIsPublic());
         final List<ColumnDto> columns3 = table3.getColumns();
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/QueueServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/QueueServiceIntegrationTest.java
index 18b2dd8e01bc8d8e10f1de9bea9798846868bc6d..6996ecb9f49821b329471c6dd91dca0b4fcc74d5 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/QueueServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/QueueServiceIntegrationTest.java
@@ -2,7 +2,7 @@ package at.tuwien.service;
 
 import at.tuwien.config.MariaDbConfig;
 import at.tuwien.config.MariaDbContainerConfig;
-import at.tuwien.exception.ContainerNotFoundException;
+import at.tuwien.exception.DatabaseNotFoundException;
 import at.tuwien.exception.MetadataServiceException;
 import at.tuwien.exception.RemoteUnavailableException;
 import at.tuwien.exception.TableNotFoundException;
@@ -53,12 +53,12 @@ public class QueueServiceIntegrationTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
-    public void insert_succeeds() throws SQLException, RemoteUnavailableException, ContainerNotFoundException,
-            TableNotFoundException, MetadataServiceException {
+    public void insert_succeeds() throws SQLException, RemoteUnavailableException, TableNotFoundException,
+            MetadataServiceException, DatabaseNotFoundException {
         final Map<String, Object> request = new HashMap<>() {{
             put("id", 4L);
             put("date", "2023-10-03");
@@ -68,29 +68,31 @@ public class QueueServiceIntegrationTest extends AbstractUnitTest {
         }};
 
         /* mock */
-        when(metadataServiceGateway.getContainerById(CONTAINER_1_ID))
-                .thenReturn(CONTAINER_1_PRIVILEGED_DTO);
+        when(metadataServiceGateway.getDatabaseById(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
 
         /* test */
-        queueService.insert(TABLE_1_PRIVILEGED_DTO, request);
+        queueService.insert(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
     }
 
     @Test
     public void insert_onlyMandatoryFields_succeeds() throws SQLException, RemoteUnavailableException,
-            TableNotFoundException, MetadataServiceException {
+            TableNotFoundException, MetadataServiceException, DatabaseNotFoundException {
         final Map<String, Object> request = new HashMap<>() {{
             put("id", 5L);
             put("date", "2023-10-04");
         }};
 
         /* mock */
+        when(metadataServiceGateway.getDatabaseById(DATABASE_1_ID))
+                .thenReturn(DATABASE_1_PRIVILEGED_DTO);
         when(metadataServiceGateway.getTableById(DATABASE_1_ID, TABLE_1_ID))
-                .thenReturn(TABLE_1_PRIVILEGED_DTO);
+                .thenReturn(TABLE_1_DTO);
 
         /* test */
-        queueService.insert(TABLE_1_PRIVILEGED_DTO, request);
+        queueService.insert(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
     }
 
 }
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/SubsetServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/SubsetServiceIntegrationTest.java
index cd92d5579c0f66297c10661ad3c0a2a0201141f0..d5bfaa1bbb56ace796babe4e9cb17d0098298bfe 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/SubsetServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/SubsetServiceIntegrationTest.java
@@ -8,6 +8,8 @@ import at.tuwien.exception.*;
 import at.tuwien.gateway.MetadataServiceGateway;
 import at.tuwien.test.AbstractUnitTest;
 import lombok.extern.log4j.Log4j2;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Row;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -20,6 +22,8 @@ import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
 
 import java.sql.SQLException;
+import java.time.Instant;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.UUID;
 
@@ -33,7 +37,7 @@ import static org.mockito.Mockito.when;
 public class SubsetServiceIntegrationTest extends AbstractUnitTest {
 
     @Autowired
-    private SubsetService queryService;
+    private SubsetService subsetService;
 
     @MockBean
     private MetadataServiceGateway metadataServiceGateway;
@@ -46,7 +50,7 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
@@ -112,7 +116,7 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         persist_generic(queryId2, List.of(IDENTIFIER_5_BRIEF_DTO), true);
-        final QueryDto response = queryService.findById(DATABASE_1_PRIVILEGED_DTO, queryId2);
+        final QueryDto response = subsetService.findById(DATABASE_1_PRIVILEGED_DTO, queryId2);
         assertEquals(queryId2, response.getId());
         assertTrue(response.getIsPersisted());
     }
@@ -129,11 +133,109 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         persist_generic(queryId1, List.of(IDENTIFIER_2_BRIEF_DTO), false);
-        final QueryDto response = queryService.findById(DATABASE_1_PRIVILEGED_DTO, queryId1);
+        final QueryDto response = subsetService.findById(DATABASE_1_PRIVILEGED_DTO, queryId1);
         assertEquals(queryId1, response.getId());
         assertFalse(response.getIsPersisted());
     }
 
+    @Test
+    public void getData_succeeds() throws QueryMalformedException, TableNotFoundException {
+        final List<List<String>> expected = List.of(
+                List.of("1", "2008-12-01", "Albury", "13.4", "0.6"),
+                List.of("2", "2008-12-02", "Albury", "7.4", "0.0"),
+                List.of("3", "2008-12-03", "Albury", "12.9", "0.0"));
+
+
+        /* test */
+        final Dataset<Row> response = subsetService.getData(DATABASE_1_PRIVILEGED_DTO, QUERY_1_STATEMENT);
+        assertNotNull(response);
+        final List<List<String>> mapped = response.collectAsList()
+                .stream()
+                .map(row -> {
+                    final List<String> map = new LinkedList<>();
+                    for (int i = 0; i < response.columns().length; i++) {
+                        map.add(row.get(i) != null ? String.valueOf(row.get(i)) : "");
+                    }
+                    return map;
+                })
+                .toList();
+        assertEquals(expected, mapped);
+    }
+
+    @Test
+    public void getData_notFound_fails() {
+
+        /* test */
+        assertThrows(TableNotFoundException.class, () -> {
+            subsetService.getData(DATABASE_1_PRIVILEGED_DTO, "SELECT 1 FROM i_do_not_exist");
+        });
+    }
+
+    @Test
+    public void reExecuteCount_succeeds() throws SQLException, QueryMalformedException {
+
+        /* test */
+        final Long response = subsetService.reExecuteCount(DATABASE_1_PRIVILEGED_DTO, QUERY_1_DTO);
+        assertNotNull(response);
+    }
+
+    @Test
+    public void reExecuteCount_malformed_fails() {
+        final QueryDto request = QueryDto.builder()
+                .execution(Instant.now())
+                .databaseId(DATABASE_1_ID)
+                .query("SELECT") // <<<
+                .build();
+
+        /* test */
+        assertThrows(QueryMalformedException.class, () -> {
+            subsetService.reExecuteCount(DATABASE_1_PRIVILEGED_DTO, request);
+        });
+    }
+
+    @Test
+    public void executeCountNonPersistent_succeeds() throws SQLException, QueryMalformedException {
+
+        /* test */
+        final Long response = subsetService.executeCountNonPersistent(DATABASE_1_PRIVILEGED_DTO, QUERY_1_STATEMENT, QUERY_1_CREATED);
+        assertNotNull(response);
+    }
+
+    @Test
+    public void executeCountNonPersistent_malformed_fails() {
+
+        /* test */
+        assertThrows(QueryMalformedException.class, () -> {
+            subsetService.executeCountNonPersistent(DATABASE_1_PRIVILEGED_DTO, "SELECT", QUERY_1_CREATED);
+        });
+    }
+
+    @Test
+    public void executeCountNonPersistent_illegalQuery_fails() {
+
+        /* test */
+        assertThrows(QueryMalformedException.class, () -> {
+            subsetService.executeCountNonPersistent(DATABASE_1_PRIVILEGED_DTO, "DROP DATABASE `weather`", QUERY_1_CREATED);
+        });
+    }
+
+    @Test
+    public void storeQuery_succeeds() throws SQLException, QueryStoreInsertException, ViewMalformedException {
+
+        /* test */
+        final UUID response = subsetService.storeQuery(DATABASE_1_PRIVILEGED_DTO, QUERY_1_STATEMENT, QUERY_1_CREATED, USER_1_ID);
+        assertNotNull(response);
+    }
+
+    @Test
+    public void storeQuery_fails() {
+
+        /* test */
+        assertThrows(QueryStoreInsertException.class, () -> {
+            subsetService.storeQuery(DATABASE_1_PRIVILEGED_DTO, "DROP DATABASE `weather`", QUERY_1_CREATED, USER_1_ID);
+        });
+    }
+
     protected void findById_generic(UUID queryId) throws RemoteUnavailableException, SQLException,
             UserNotFoundException, QueryNotFoundException, MetadataServiceException, DatabaseNotFoundException,
             InterruptedException {
@@ -148,7 +250,7 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
                 .thenReturn(USER_1_DTO);
 
         /* test */
-        final QueryDto response = queryService.findById(DATABASE_1_PRIVILEGED_DTO, queryId);
+        final QueryDto response = subsetService.findById(DATABASE_1_PRIVILEGED_DTO, queryId);
         assertEquals(queryId, response.getId());
     }
 
@@ -166,7 +268,7 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
                 .thenReturn(List.of(IDENTIFIER_2_BRIEF_DTO, IDENTIFIER_5_BRIEF_DTO));
 
         /* test */
-        return queryService.findAll(DATABASE_1_PRIVILEGED_DTO, filterPersisted);
+        return subsetService.findAll(DATABASE_1_PRIVILEGED_DTO, filterPersisted);
     }
 
     protected void persist_generic(UUID queryId, List<IdentifierBriefDto> identifiers, Boolean persist)
@@ -181,7 +283,7 @@ public class SubsetServiceIntegrationTest extends AbstractUnitTest {
                 .thenReturn(identifiers);
 
         /* test */
-        queryService.persist(DATABASE_1_PRIVILEGED_DTO, queryId, persist);
+        subsetService.persist(DATABASE_1_PRIVILEGED_DTO, queryId, persist);
     }
 
 }
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/TableServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/TableServiceIntegrationTest.java
index bd4eb4d04b2973d6751f43548a49312f2c240853..77e91361db1ddbc733251c0617ff658bd199ea7a 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/TableServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/TableServiceIntegrationTest.java
@@ -79,8 +79,8 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_2_INTERNALNAME);
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_3_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_3_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_3_PRIVILEGED_DTO);
         /* s3 */
         if (s3Client.listBuckets().buckets().stream().noneMatch(b -> b.name().equals(s3Config.getS3Bucket()))) {
             s3Client.createBucket(CreateBucketRequest.builder()
@@ -110,7 +110,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.updateTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.updateTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 1", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("1", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date")); // <<<
@@ -137,7 +137,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.updateTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.updateTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 4", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("4", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date")); // <<<
@@ -163,7 +163,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.updateTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.updateTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 1", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("1", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date")); // <<<
@@ -189,7 +189,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.updateTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.updateTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 1", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("1", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date")); // <<<
@@ -213,7 +213,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.createTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.createTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 4", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("4", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date"));
@@ -240,7 +240,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build(), RequestBody.fromFile(new File("src/test/resources/csv/keyboard.csv")));
 
         /* test */
-        tableService.createTuple(TABLE_8_PRIVILEGED_DTO, request);
+        tableService.createTuple(DATABASE_3_PRIVILEGED_DTO, TABLE_8_DTO, request);
         final List<Map<String, byte[]>> result = MariaDbConfig.selectQueryByteArr(DATABASE_3_PRIVILEGED_DTO, "SELECT raw FROM mfcc WHERE raw IS NOT NULL", Set.of("raw"));
         assertNotNull(result.get(0).get("raw"));
         assertArrayEquals(Files.toByteArray(new File("src/test/resources/csv/keyboard.csv")), result.get(0).get("raw"));
@@ -261,7 +261,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.createTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.createTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id, `date`, location, mintemp, rainfall FROM weather_aus WHERE id = 4", Set.of("id", "date", "location", "mintemp", "rainfall"));
         assertEquals("4", result.get(0).get("id"));
         assertEquals("2023-10-03", result.get(0).get("date"));
@@ -280,7 +280,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.deleteTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.deleteTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id FROM weather_aus WHERE id = 1", Set.of("id"));
         assertEquals(0, result.size());
     }
@@ -297,7 +297,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build();
 
         /* test */
-        tableService.deleteTuple(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.deleteTuple(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         final List<Map<String, String>> result = MariaDbConfig.selectQuery(DATABASE_1_PRIVILEGED_DTO, "SELECT id FROM weather_aus WHERE id = 1", Set.of("id"));
         assertEquals(0, result.size());
     }
@@ -307,7 +307,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
     public void getStatistics_succeeds() throws TableMalformedException, SQLException, TableNotFoundException {
 
         /* test */
-        final TableStatisticDto response = tableService.getStatistics(TABLE_2_PRIVILEGED_DTO);
+        final TableStatisticDto response = tableService.getStatistics(DATABASE_1_PRIVILEGED_DTO, TABLE_2_DTO);
         assertEquals(TABLE_2_COLUMNS.size(), response.getColumns().size());
         log.trace("response rows: {}", response.getRows());
         assertEquals(3L, response.getRows());
@@ -336,7 +336,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
     public void delete_succeeds() throws SQLException, QueryMalformedException {
 
         /* test */
-        tableService.delete(TABLE_1_PRIVILEGED_DTO);
+        tableService.delete(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO);
     }
 
     @Test
@@ -347,7 +347,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(QueryMalformedException.class, () -> {
-            tableService.delete(TABLE_5_PRIVILEGED_DTO);
+            tableService.delete(DATABASE_2_PRIVILEGED_DTO, TABLE_5_DTO);
         });
     }
 
@@ -355,7 +355,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
     public void getCount_succeeds() throws SQLException, QueryMalformedException {
 
         /* test */
-        final Long response = tableService.getCount(TABLE_1_PRIVILEGED_DTO, null);
+        final Long response = tableService.getCount(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, null);
         assertEquals(3, response);
     }
 
@@ -363,7 +363,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
     public void getCount_timestamp_succeeds() throws SQLException, QueryMalformedException {
 
         /* test */
-        final Long response = tableService.getCount(TABLE_1_PRIVILEGED_DTO, Instant.ofEpochSecond(0));
+        final Long response = tableService.getCount(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, Instant.ofEpochSecond(0));
         assertEquals(0, response);
     }
 
@@ -375,7 +375,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(QueryMalformedException.class, () -> {
-            tableService.getCount(TABLE_5_PRIVILEGED_DTO, null);
+            tableService.getCount(DATABASE_2_PRIVILEGED_DTO, TABLE_5_DTO, null);
         });
     }
 
@@ -383,7 +383,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
     public void history_succeeds() throws SQLException, TableNotFoundException {
 
         /* test */
-        final List<TableHistoryDto> response = tableService.history(TABLE_1_PRIVILEGED_DTO, 1000L);
+        final List<TableHistoryDto> response = tableService.history(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, 1000L);
         assertEquals(1, response.size());
         final TableHistoryDto history0 = response.get(0);
         assertNotNull(history0.getTimestamp());
@@ -399,7 +399,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(TableNotFoundException.class, () -> {
-            tableService.history(TABLE_5_PRIVILEGED_DTO, null);
+            tableService.history(DATABASE_2_PRIVILEGED_DTO, TABLE_5_DTO, null);
         });
     }
 
@@ -421,7 +421,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
                 .build(), RequestBody.fromFile(new File("src/test/resources/csv/weather_aus.csv")));
 
         /* test */
-        tableService.importDataset(TABLE_1_PRIVILEGED_DTO, request);
+        tableService.importDataset(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
     }
 
     @Test
@@ -442,7 +442,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(TableMalformedException.class, () -> {
-            tableService.importDataset(TABLE_1_PRIVILEGED_DTO, request);
+            tableService.importDataset(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         });
     }
 
@@ -464,7 +464,7 @@ public class TableServiceIntegrationTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(MalformedException.class, () -> {
-            tableService.importDataset(TABLE_1_PRIVILEGED_DTO, request);
+            tableService.importDataset(DATABASE_1_PRIVILEGED_DTO, TABLE_1_DTO, request);
         });
     }
 
diff --git a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/ViewServiceIntegrationTest.java b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/ViewServiceIntegrationTest.java
index 2edf7f5f28a2e607ba55eb38ca82547f112a60f5..5e99f4afbcf1c144ed3566d62a21dd0cd5f771e4 100644
--- a/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/ViewServiceIntegrationTest.java
+++ b/dbrepo-data-service/rest-service/src/test/java/at/tuwien/service/ViewServiceIntegrationTest.java
@@ -34,14 +34,14 @@ public class ViewServiceIntegrationTest extends AbstractUnitTest {
         genesis();
         /* metadata database */
         MariaDbConfig.dropDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_INTERNALNAME);
-        MariaDbConfig.createInitDatabase(CONTAINER_1_PRIVILEGED_DTO, DATABASE_1_PRIVILEGED_DTO);
+        MariaDbConfig.createInitDatabase(DATABASE_1_PRIVILEGED_DTO);
     }
 
     @Test
     public void delete_succeeds() throws SQLException, ViewMalformedException {
 
         /* test */
-        viewService.delete(VIEW_1_PRIVILEGED_DTO);
+        viewService.delete(DATABASE_1_PRIVILEGED_DTO, VIEW_1_DTO);
     }
 
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
index 3140f77cb585ef3ba02937b514ed3a1cd36631da..1e9d1c4bf0653758f4334f44d5c665610b7fc0fa 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
@@ -13,6 +13,7 @@ import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.context.SecurityContextHolder;
@@ -52,13 +53,13 @@ public class AuthTokenFilter extends OncePerRequestFilter {
         filterChain.doFilter(request, response);
     }
 
-    public UserDetails verifyJwt(String token) throws ServletException {
+    public UserDetails verifyJwt(String token) throws BadCredentialsException {
         final KeyFactory kf;
         try {
             kf = KeyFactory.getInstance("RSA");
         } catch (NoSuchAlgorithmException e) {
             log.error("Failed to find RSA algorithm");
-            throw new ServletException("Failed to find RSA algorithm", e);
+            throw new BadCredentialsException("Failed to find RSA algorithm", e);
         }
         final X509EncodedKeySpec keySpecX509 = new X509EncodedKeySpec(Base64.getDecoder().decode(publicKey));
         final RSAPublicKey pubKey;
@@ -66,7 +67,7 @@ public class AuthTokenFilter extends OncePerRequestFilter {
             pubKey = (RSAPublicKey) kf.generatePublic(keySpecX509);
         } catch (InvalidKeySpecException e) {
             log.error("Provided public key is invalid");
-            throw new ServletException("Provided public key is invalid", e);
+            throw new BadCredentialsException("Provided public key is invalid", e);
         }
         final Algorithm algorithm = Algorithm.RSA256(pubKey, null);
         final Verification verification = JWT.require(algorithm);
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
index 80fdd15f1daff7625508eb8d46d9b54332a5150f..f7f51c0b0d5eab1d06d5e83cc93256cf5211c911 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
@@ -1,13 +1,10 @@
 package at.tuwien.auth;
 
 import at.tuwien.api.keycloak.TokenDto;
-import at.tuwien.exception.*;
 import at.tuwien.gateway.KeycloakGateway;
-import jakarta.servlet.ServletException;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.AuthenticationManager;
-import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.AuthenticationException;
@@ -29,13 +26,8 @@ public class BasicAuthenticationProvider implements AuthenticationManager {
 
     @Override
     public Authentication authenticate(Authentication auth) throws AuthenticationException {
-        try {
-            final TokenDto tokenDto = keycloakGateway.obtainUserToken(auth.getName(), auth.getCredentials().toString());
-            final UserDetails userDetails = authTokenFilter.verifyJwt(tokenDto.getAccessToken());
-            return new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
-        } catch (ServletException | CredentialsInvalidException | AccountNotSetupException |
-                 AuthServiceConnectionException e) {
-            throw new BadCredentialsException("Failed to authenticate with authentication service", e);
-        }
+        final TokenDto tokenDto = keycloakGateway.obtainUserToken(auth.getName(), auth.getCredentials().toString());
+        final UserDetails userDetails = authTokenFilter.verifyJwt(tokenDto.getAccessToken());
+        return new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
     }
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/InternalRequestInterceptor.java b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/InternalRequestInterceptor.java
index 20955bcdb36912e3f8dd4ed695a4e688f1177ccf..b0edc929ed0097ce94e65153707dc47406f0f3c9 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/auth/InternalRequestInterceptor.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/auth/InternalRequestInterceptor.java
@@ -2,7 +2,6 @@ package at.tuwien.auth;
 
 import at.tuwien.api.keycloak.TokenDto;
 import at.tuwien.config.GatewayConfig;
-import at.tuwien.exception.*;
 import at.tuwien.gateway.KeycloakGateway;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.http.HttpHeaders;
@@ -31,15 +30,10 @@ public class InternalRequestInterceptor implements ClientHttpRequestInterceptor
             throws IOException {
         final HttpHeaders headers = request.getHeaders();
         headers.setAccept(List.of(MediaType.APPLICATION_JSON));
-        try {
-            final TokenDto token = keycloakGateway.obtainUserToken(gatewayConfig.getSystemUsername(),
-                    gatewayConfig.getSystemPassword());
-            headers.setBearerAuth(token.getAccessToken());
-            log.trace("set bearer token for internal user: {}", gatewayConfig.getSystemUsername());
-        } catch (AuthServiceConnectionException | CredentialsInvalidException | AccountNotSetupException e) {
-            log.error("Failed to obtain token for internal user: {}", gatewayConfig.getSystemUsername());
-            throw new IOException("Failed to obtain token for internal user", e);
-        }
+        final TokenDto token = keycloakGateway.obtainUserToken(gatewayConfig.getSystemUsername(),
+                gatewayConfig.getSystemPassword());
+        headers.setBearerAuth(token.getAccessToken());
+        log.trace("set bearer token for internal user: {}", gatewayConfig.getSystemUsername());
         return execution.execute(request, body);
     }
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/config/GatewayConfig.java b/dbrepo-data-service/services/src/main/java/at/tuwien/config/GatewayConfig.java
index c511f2b511ff3cd66d52f63a55ca8ca73ce2a6c9..1a92faf86f39c5568b9fd927499a61874aacc09c 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/config/GatewayConfig.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/config/GatewayConfig.java
@@ -5,6 +5,7 @@ import at.tuwien.gateway.KeycloakGateway;
 import lombok.Getter;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/config/KeycloakConfig.java b/dbrepo-data-service/services/src/main/java/at/tuwien/config/KeycloakConfig.java
index cc6960ba39be294a61e059f3a3f45ecfc8e820fd..57183b87672a078c1462ad25b9d3504b4ffe38b9 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/config/KeycloakConfig.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/config/KeycloakConfig.java
@@ -1,8 +1,11 @@
 package at.tuwien.config;
 
 import lombok.Getter;
+import org.keycloak.admin.client.Keycloak;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
 
 @Getter
 @Configuration
@@ -22,4 +25,11 @@ public class KeycloakConfig {
 
     @Value("${dbrepo.keycloak.clientSecret}")
     private String keycloakClientSecret;
+
+    private final String realm = "dbrepo";
+
+    @Bean
+    public Keycloak keycloak() {
+        return Keycloak.getInstance(keycloakEndpoint, "master", keycloakUsername, keycloakPassword, "admin-cli");
+    }
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/KeycloakGateway.java b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/KeycloakGateway.java
index 9e6a5f56bda37fc1b3d9af9fca8158a5fcce27f7..21fbf674db6fbee0890528c2cb465eab53bba1c2 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/KeycloakGateway.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/KeycloakGateway.java
@@ -4,10 +4,11 @@ import at.tuwien.api.keycloak.TokenDto;
 import at.tuwien.exception.AccountNotSetupException;
 import at.tuwien.exception.AuthServiceConnectionException;
 import at.tuwien.exception.CredentialsInvalidException;
+import at.tuwien.exception.NotAllowedException;
+import org.springframework.security.authentication.BadCredentialsException;
 
 public interface KeycloakGateway {
 
-    TokenDto obtainUserToken(String username, String password) throws AuthServiceConnectionException,
-            CredentialsInvalidException, AccountNotSetupException;
+    TokenDto obtainUserToken(String username, String password) throws BadCredentialsException;
 
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
index 1e235de4c63d883f2807c67e94480105750f5019..1e14a4b4ceec8e3738f7796b4867fb1dd455ea8d 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
@@ -2,67 +2,47 @@ package at.tuwien.gateway.impl;
 
 import at.tuwien.api.keycloak.TokenDto;
 import at.tuwien.config.KeycloakConfig;
-import at.tuwien.exception.AccountNotSetupException;
-import at.tuwien.exception.AuthServiceConnectionException;
-import at.tuwien.exception.CredentialsInvalidException;
 import at.tuwien.gateway.KeycloakGateway;
+import at.tuwien.mapper.MetadataMapper;
+import jakarta.ws.rs.NotAuthorizedException;
 import lombok.extern.log4j.Log4j2;
+import org.keycloak.OAuth2Constants;
+import org.keycloak.admin.client.Keycloak;
+import org.keycloak.admin.client.KeycloakBuilder;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.*;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.stereotype.Service;
-import org.springframework.util.LinkedMultiValueMap;
-import org.springframework.util.MultiValueMap;
-import org.springframework.web.client.HttpClientErrorException;
-import org.springframework.web.client.HttpServerErrorException;
-import org.springframework.web.client.RestTemplate;
 
 @Log4j2
 @Service
 public class KeycloakGatewayImpl implements KeycloakGateway {
 
     private final KeycloakConfig keycloakConfig;
+    private final MetadataMapper metadataMapper;
 
     @Autowired
-    public KeycloakGatewayImpl(KeycloakConfig keycloakConfig) {
+    public KeycloakGatewayImpl(KeycloakConfig keycloakConfig, MetadataMapper metadataMapper) {
         this.keycloakConfig = keycloakConfig;
+        this.metadataMapper = metadataMapper;
     }
 
     @Override
-    public TokenDto obtainUserToken(String username, String password) throws AuthServiceConnectionException,
-            CredentialsInvalidException, AccountNotSetupException {
-        final HttpHeaders headers = new HttpHeaders();
-        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
-        final MultiValueMap<String, String> payload = new LinkedMultiValueMap<>();
-        payload.add("username", username);
-        payload.add("password", password);
-        payload.add("grant_type", "password");
-        payload.add("scope", "openid roles");
-        payload.add("client_id", keycloakConfig.getKeycloakClient());
-        payload.add("client_secret", keycloakConfig.getKeycloakClientSecret());
-        final String url = keycloakConfig.getKeycloakEndpoint() + "/realms/dbrepo/protocol/openid-connect/token";
-        log.trace("request user token from url: {}", url);
-        final ResponseEntity<TokenDto> response;
-        try {
-            response = new RestTemplate()
-                    .exchange(url, HttpMethod.POST, new HttpEntity<>(payload, headers), TokenDto.class);
-        } catch (HttpServerErrorException e) {
+    public TokenDto obtainUserToken(String username, String password) throws BadCredentialsException {
+        try (Keycloak userKeycloak = KeycloakBuilder.builder()
+                .serverUrl(keycloakConfig.getKeycloakEndpoint())
+                .realm(keycloakConfig.getRealm())
+                .grantType(OAuth2Constants.PASSWORD)
+                .clientId(keycloakConfig.getKeycloakClient())
+                .clientSecret(keycloakConfig.getKeycloakClientSecret())
+                .username(username)
+                .password(password)
+                .build()) {
+            return metadataMapper.accessTokenResponseToTokenDto(userKeycloak.tokenManager()
+                    .getAccessToken());
+        } catch (NotAuthorizedException e) {
             log.error("Failed to obtain user token: {}", e.getMessage());
-            throw new AuthServiceConnectionException("Failed to obtain user token: " + e.getMessage(), e);
-        } catch (HttpClientErrorException.BadRequest e) {
-            if (e.getResponseBodyAsByteArray() != null && e.getResponseBodyAsByteArray().length > 0) {
-                final String error = e.getResponseBodyAsString();
-                if (error != null && error.contains("invalid_grant")) {
-                    log.error("Failed to obtain user token: {}", error);
-                    throw new AccountNotSetupException("Failed to obtain user token: " + error, e);
-                }
-            }
-            log.error("Failed to obtain user token: bad request");
-            throw new CredentialsInvalidException("Bad request", e);
-        } catch (HttpClientErrorException.Unauthorized e) {
-            log.error("Failed to obtain user token: invalid credentials");
-            throw new CredentialsInvalidException("Invalid credentials: " + e.getMessage(), e);
+            throw new BadCredentialsException("Failed to obtain user token", e);
         }
-        return response.getBody();
     }
 
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/MetadataServiceGatewayImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/MetadataServiceGatewayImpl.java
index d90250f0287806b8c8a659268eb0c81ff1a4bd2f..cd8cfff2da2aa255d7137eb43ed099ec778812cc 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/MetadataServiceGatewayImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/gateway/impl/MetadataServiceGatewayImpl.java
@@ -139,21 +139,11 @@ public class MetadataServiceGatewayImpl implements MetadataServiceGateway {
             log.error("Failed to find table with id {}: service responded unsuccessful: {}", id, response.getStatusCode());
             throw new MetadataServiceException("Failed to find table: service responded unsuccessful: " + response.getStatusCode());
         }
-        final List<String> expectedHeaders = List.of("X-Username", "X-Password", "X-Jdbc-Method");
-        if (!response.getHeaders().keySet().containsAll(expectedHeaders)) {
-            log.error("Failed to find all  table headers");
-            log.debug("expected headers: {}", expectedHeaders);
-            log.debug("found headers: {}", response.getHeaders().keySet());
-            throw new MetadataServiceException("Failed to find all  table headers");
-        }
         if (response.getBody() == null) {
             log.error("Failed to find table with id {}: body is empty", id);
             throw new MetadataServiceException("Failed to find table with id " + id + ": body is empty");
         }
         final TableDto table = metadataMapper.tableDtoToTableDto(response.getBody());
-        table.getDatabase().getContainer().setUsername(response.getHeaders().get("X-Username").get(0));
-        table.getDatabase().getContainer().setPassword(response.getHeaders().get("X-Password").get(0));
-        table.getDatabase().getContainer().getImage().setJdbcMethod(response.getHeaders().get("X-Jdbc-Method").get(0));
         table.setLastRetrieved(Instant.now());
         return table;
     }
@@ -177,21 +167,11 @@ public class MetadataServiceGatewayImpl implements MetadataServiceGateway {
             log.error("Failed to find view with id {}: service responded unsuccessful: {}", id, response.getStatusCode());
             throw new MetadataServiceException("Failed to find view: service responded unsuccessful: " + response.getStatusCode());
         }
-        final List<String> expectedHeaders = List.of("X-Username", "X-Password", "X-Jdbc-Method");
-        if (!response.getHeaders().keySet().containsAll(expectedHeaders)) {
-            log.error("Failed to find all  view headers");
-            log.debug("expected headers: {}", expectedHeaders);
-            log.debug("found headers: {}", response.getHeaders().keySet());
-            throw new MetadataServiceException("Failed to find all  view headers");
-        }
         if (response.getBody() == null) {
             log.error("Failed to find view with id {}: body is empty", id);
             throw new MetadataServiceException("Failed to find view with id " + id + ": body is empty");
         }
         final ViewDto view = metadataMapper.viewDtoToViewDto(response.getBody());
-        view.getDatabase().getContainer().setUsername(response.getHeaders().get("X-Username").get(0));
-        view.getDatabase().getContainer().setPassword(response.getHeaders().get("X-Password").get(0));
-        view.getDatabase().getContainer().getImage().setJdbcMethod(response.getHeaders().get("X-Jdbc-Method").get(0));
         view.setLastRetrieved(Instant.now());
         return view;
     }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/listener/DefaultListener.java b/dbrepo-data-service/services/src/main/java/at/tuwien/listener/DefaultListener.java
index 336a48311739f15ec95c3546ebbeaee4130a8cde..929ede0a8f3e7ee1467a2def289c836d9823f531 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/listener/DefaultListener.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/listener/DefaultListener.java
@@ -1,10 +1,12 @@
 package at.tuwien.listener;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.table.TableDto;
+import at.tuwien.exception.DatabaseNotFoundException;
 import at.tuwien.exception.MetadataServiceException;
 import at.tuwien.exception.RemoteUnavailableException;
 import at.tuwien.exception.TableNotFoundException;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import at.tuwien.service.QueueService;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -27,15 +29,15 @@ import java.util.UUID;
 @Component
 public class DefaultListener implements MessageListener {
 
+    private final CacheService cacheService;
     private final ObjectMapper objectMapper;
     private final QueueService queueService;
-    private final CredentialService credentialService;
 
     @Autowired
-    public DefaultListener(ObjectMapper objectMapper, QueueService queueService, CredentialService credentialService) {
+    public DefaultListener(CacheService cacheService, ObjectMapper objectMapper, QueueService queueService) {
+        this.cacheService = cacheService;
         this.objectMapper = objectMapper;
         this.queueService = queueService;
-        this.credentialService = credentialService;
     }
 
     @Override
@@ -59,15 +61,18 @@ public class DefaultListener implements MessageListener {
         log.trace("received message for table with id {} of database id {}: {} bytes", tableId, databaseId, message.getMessageProperties().getContentLength());
         final Map<String, Object> body;
         try {
-            final TableDto table = credentialService.getTable(databaseId, tableId);
+            final DatabaseDto database = cacheService.getDatabase(databaseId);
+            final TableDto table = cacheService.getTable(databaseId, tableId);
             body = objectMapper.readValue(message.getBody(), typeRef);
-            queueService.insert(table, body);
+            queueService.insert(database, table, body);
         } catch (IOException e) {
             log.error("Failed to read object: {}", e.getMessage());
         } catch (SQLException | RemoteUnavailableException e) {
             log.error("Failed to insert tuple: {}", e.getMessage());
         } catch (TableNotFoundException | MetadataServiceException e) {
             log.error("Failed to find table: {}", e.getMessage());
+        } catch (DatabaseNotFoundException e) {
+            log.error("Failed to find database: {}", e.getMessage());
         }
     }
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/DataMapper.java b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/DataMapper.java
index df65225a3f63e2e9446ab9793ab9a8ce05af0b0f..9692b48b9e171fbf87e534612190e8c4f1ae2bd8 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/DataMapper.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/DataMapper.java
@@ -48,9 +48,6 @@ public interface DataMapper {
     ColumnBriefDto columnDtoToColumnBriefDto(ColumnDto data);
 
     /* redundant */
-    @Mappings({
-            @Mapping(target = "databaseId", source = "tdbid")
-    })
     TableBriefDto tableDtoToTableBriefDto(TableDto data);
 
     /* redundant */
@@ -58,9 +55,11 @@ public interface DataMapper {
 
     ForeignKeyBriefDto foreignKeyDtoToForeignKeyBriefDto(ForeignKeyDto data);
 
-    default String rabbitMqTupleToInsertOrUpdateQuery(TableDto table, Map<String, Object> data) {
+    default String rabbitMqTupleToInsertOrUpdateQuery(String databaseName, TableDto table, Map<String, Object> data) {
         /* parameterized query for prepared statement */
         final StringBuilder statement = new StringBuilder("INSERT INTO `")
+                .append(databaseName)
+                .append("`.`")
                 .append(table.getInternalName())
                 .append("` (")
                 .append(data.keySet()
@@ -89,7 +88,7 @@ public interface DataMapper {
         return ViewDto.builder()
                 .name(resultSet.getString(1))
                 .internalName(resultSet.getString(1))
-                .vdbid(database.getId())
+                .databaseId(database.getId())
                 .isInitialView(false)
                 .isPublic(database.getIsPublic())
                 .isSchemaPublic(database.getIsSchemaPublic())
@@ -129,7 +128,7 @@ public interface DataMapper {
                 .name(resultSet.getString(10))
                 .internalName(resultSet.getString(10))
                 .tableId(table.getId())
-                .databaseId(table.getTdbid())
+                .databaseId(table.getDatabaseId())
                 .description(resultSet.getString(11))
                 .build();
         final String dataType = resultSet.getString(8);
@@ -179,7 +178,7 @@ public interface DataMapper {
                 .d(resultSet.getString(7) != null ? resultSet.getLong(7) : null)
                 .name(resultSet.getString(10))
                 .internalName(resultSet.getString(10))
-                .databaseId(view.getVdbid())
+                .databaseId(view.getDatabaseId())
                 .build();
         /* fix boolean and set size for others */
         if (resultSet.getString(8).equalsIgnoreCase("tinyint(1)")) {
@@ -273,12 +272,12 @@ public interface DataMapper {
                     .column(ColumnBriefDto.builder()
                             .name(columnName)
                             .internalName(columnName)
-                            .databaseId(table.getTdbid())
+                            .databaseId(table.getDatabaseId())
                             .build())
                     .referencedColumn(ColumnBriefDto.builder()
                             .name(referencedColumnName)
                             .internalName(referencedColumnName)
-                            .databaseId(table.getTdbid())
+                            .databaseId(table.getDatabaseId())
                             .build())
                     .build();
             if (optional1.isPresent()) {
@@ -295,7 +294,7 @@ public interface DataMapper {
                     .referencedTable(TableBriefDto.builder()
                             .name(referencedTable)
                             .internalName(referencedTable)
-                            .databaseId(table.getTdbid())
+                            .databaseId(table.getDatabaseId())
                             .build())
                     .references(new LinkedList<>(List.of(foreignKeyReference)))
                     .onDelete(deleteRule)
@@ -325,7 +324,7 @@ public interface DataMapper {
                 .avgRowLength(resultSet.getLong(4))
                 .dataLength(resultSet.getLong(5))
                 .maxDataLength(resultSet.getLong(6))
-                .tdbid(database.getId())
+                .databaseId(database.getId())
                 .queueName("dbrepo")
                 .routingKey("dbrepo")
                 .description(resultSet.getString(10))
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MariaDbMapper.java b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MariaDbMapper.java
index 4e48c02786ba60cfed541c80048e921fc39d6b61..7b28a9b2ed9297aa6bf775b172d5803f667ad663 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MariaDbMapper.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MariaDbMapper.java
@@ -1,5 +1,11 @@
 package at.tuwien.mapper;
 
+import at.tuwien.api.container.image.OperatorDto;
+import at.tuwien.api.database.DatabaseDto;
+import at.tuwien.api.database.query.FilterDto;
+import at.tuwien.api.database.query.FilterTypeDto;
+import at.tuwien.api.database.query.OrderDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.database.table.TupleDeleteDto;
 import at.tuwien.api.database.table.TupleDto;
@@ -7,9 +13,15 @@ import at.tuwien.api.database.table.TupleUpdateDto;
 import at.tuwien.api.database.table.columns.ColumnDto;
 import at.tuwien.api.database.table.columns.ColumnTypeDto;
 import at.tuwien.api.database.table.columns.CreateTableColumnDto;
+import at.tuwien.exception.ImageNotFoundException;
 import at.tuwien.exception.QueryMalformedException;
 import at.tuwien.exception.TableMalformedException;
+import at.tuwien.exception.TableNotFoundException;
 import at.tuwien.utils.MariaDbUtil;
+import org.jooq.Record;
+import org.jooq.*;
+import org.jooq.conf.ParamType;
+import org.jooq.conf.StatementType;
 import org.mapstruct.Mapper;
 import org.mapstruct.Named;
 
@@ -27,6 +39,9 @@ import java.util.*;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
+import static org.jooq.impl.DSL.field;
+import static org.jooq.impl.DSL.select;
+
 @Mapper(componentModel = "spring", uses = {MetadataMapper.class, DataMapper.class})
 public interface MariaDbMapper {
 
@@ -173,10 +188,14 @@ public interface MariaDbMapper {
     }
 
     @Named("dropView")
-    default String dropViewRawQuery(String viewName) {
-        final String statement = "DROP VIEW IF EXISTS `" + viewName + "`;";
+    default String dropViewRawQuery(String databaseName, String viewName) {
+        final StringBuilder statement = new StringBuilder("DROP VIEW IF EXISTS `")
+                .append(databaseName)
+                .append("`.`")
+                .append(viewName)
+                .append("`;");
         log.trace("mapped drop view statement: {}", statement);
-        return statement;
+        return statement.toString();
     }
 
     default String databaseViewSelectRawQuery() {
@@ -289,16 +308,21 @@ public interface MariaDbMapper {
         return statement.toString();
     }
 
-    default String tableNameToUpdateTableRawQuery(String internalName) {
+    default String tableNameToUpdateTableRawQuery(String databaseName, String internalName) {
         final StringBuilder stringBuilder = new StringBuilder("ALTER TABLE `")
+                .append(databaseName)
+                .append("`.`")
                 .append(internalName)
                 .append("` COMMENT = ?;");
         log.trace("mapped update table statement: {}", stringBuilder);
         return stringBuilder.toString();
     }
 
-    default String tableCreateDtoToCreateTableRawQuery(at.tuwien.api.database.table.internal.TableCreateDto data) {
+    default String tableCreateDtoToCreateTableRawQuery(String databaseName,
+                                                       at.tuwien.api.database.table.internal.TableCreateDto data) {
         final StringBuilder stringBuilder = new StringBuilder("CREATE TABLE `")
+                .append(databaseName)
+                .append("`.`")
                 .append(nameToInternalName(data.getName()))
                 .append("` (");
         log.trace("PRIMARY KEY column(s) exist: {}", data.getConstraints().getPrimaryKey());
@@ -469,16 +493,18 @@ public interface MariaDbMapper {
     }
 
     @Named("dropTableQuery")
-    default String dropTableRawQuery(String tableName) {
-        return dropTableRawQuery(tableName, true);
+    default String dropTableRawQuery(String databaseName, String tableName) {
+        return dropTableRawQuery(databaseName, tableName, true);
     }
 
-    default String dropTableRawQuery(String tableName, Boolean force) {
+    default String dropTableRawQuery(String databaseName, String tableName, Boolean force) {
         final StringBuilder statement = new StringBuilder("DROP TABLE ");
         if (!force) {
             statement.append("IF EXISTS ");
         }
         statement.append("`")
+                .append(databaseName)
+                .append("`.`")
                 .append(tableName)
                 .append("`;");
         log.trace("mapped drop table query: {}", statement);
@@ -507,13 +533,15 @@ public interface MariaDbMapper {
         return statement.toString();
     }
 
-    default String tupleToRawDeleteQuery(TableDto table, TupleDeleteDto data) throws TableMalformedException {
+    default String tupleToRawDeleteQuery(String databaseName, TableDto table, TupleDeleteDto data) throws TableMalformedException {
         log.trace("table csv to delete query, table.id={}, data.keys={}", table.getId(), data.getKeys());
         if (table.getColumns().isEmpty()) {
             throw new TableMalformedException("Columns are not known");
         }
         /* parameterized query for prepared statement */
         final StringBuilder statement = new StringBuilder("DELETE FROM `")
+                .append(databaseName)
+                .append("`.`")
                 .append(table.getInternalName())
                 .append("` WHERE ");
         final int[] idx = new int[]{0};
@@ -528,14 +556,14 @@ public interface MariaDbMapper {
         return statement.toString();
     }
 
-    default String tupleToRawUpdateQuery(TableDto table, TupleUpdateDto data)
+    default String tupleToRawUpdateQuery(String databaseName, TableDto table, TupleUpdateDto data)
             throws TableMalformedException {
         if (table.getColumns().isEmpty()) {
             throw new TableMalformedException("Columns are not known");
         }
         /* parameterized query for prepared statement */
         final StringBuilder statement = new StringBuilder("UPDATE `")
-                .append(table.getDatabase().getInternalName())
+                .append(databaseName)
                 .append("`.`")
                 .append(table.getInternalName())
                 .append("` SET ");
@@ -567,13 +595,13 @@ public interface MariaDbMapper {
         return statement.toString();
     }
 
-    default String tupleToRawCreateQuery(TableDto table, TupleDto data) throws TableMalformedException {
+    default String tupleToRawCreateQuery(String databaseName, TableDto table, TupleDto data) throws TableMalformedException {
         if (table.getColumns().isEmpty()) {
             throw new TableMalformedException("Columns are not known");
         }
         /* parameterized query for prepared statement */
         final StringBuilder statement = new StringBuilder("INSERT INTO `")
-                .append(table.getDatabase().getInternalName())
+                .append(databaseName)
                 .append("`.`")
                 .append(table.getInternalName())
                 .append("` (");
@@ -788,4 +816,160 @@ public interface MariaDbMapper {
         return statement.toString();
     }
 
+    default SelectConditionStep<Record> subsetDtoToSelectConditions(SelectJoinStep<Record> step, DatabaseDto database,
+                                                                    SubsetDto data) throws TableNotFoundException,
+            ImageNotFoundException {
+        if (data.getFilter() == null || data.getFilter().isEmpty()) {
+            return step.where();
+        }
+        SelectConditionStep<Record> conditions = step.where();
+        FilterTypeDto next = null;
+        for (int i = 0; i < data.getFilter().size(); i++) {
+            final FilterDto filter = data.getFilter().get(i);
+            final ColumnDto column = columnIdToColumnDto(database, filter.getColumnId());
+            if (i == 0) {
+                conditions = step.where(filterDtoToCondition(database, column, filter));
+            } else if (next != null) {
+                if (next.equals(FilterTypeDto.OR)) {
+                    conditions = conditions.or(filterDtoToCondition(database, column, filter));
+                } else if (next.equals(FilterTypeDto.AND)) {
+                    conditions = conditions.and(filterDtoToCondition(database, column, filter));
+                }
+            }
+            next = filter.getType();
+        }
+        return conditions;
+    }
+
+    default Condition filterDtoToCondition(DatabaseDto database, ColumnDto column, FilterDto data)
+            throws ImageNotFoundException {
+        final String operator = operatorIdToOperatorDto(database, data.getOperatorId()).getValue();
+        switch (operator) {
+            case "=":
+            case "<=>":
+                return field(column.getInternalName()).eq(data.getValue());
+            case "<":
+                return field(column.getInternalName()).lt(data.getValue());
+            case "<=":
+                return field(column.getInternalName()).le(data.getValue());
+            case ">":
+                return field(column.getInternalName()).gt(data.getValue());
+            case ">=":
+                return field(column.getInternalName()).ge(data.getValue());
+            case "!=":
+                return field(column.getInternalName()).ne(data.getValue());
+            case "LIKE":
+                return field(column.getInternalName()).like(data.getValue());
+            case "NOT LIKE":
+                return field(column.getInternalName()).notLike(data.getValue());
+            case "IN":
+                return field(column.getInternalName()).in(data.getValue());
+            case "NOT IN":
+                return field(column.getInternalName()).notIn(data.getValue());
+            case "IS NOT NULL":
+                return field(column.getInternalName()).isNotNull();
+            case "IS NULL":
+                return field(column.getInternalName()).isNull();
+            case "REGEXP":
+                return field(column.getInternalName()).likeRegex(data.getValue());
+            case "NOT REGEXP":
+                return field(column.getInternalName()).notLikeRegex(data.getValue());
+        }
+        log.error("Failed to map operator: {}", operator);
+        throw new IllegalArgumentException("Failed to map operator: " + operator);
+    }
+
+    default SelectSeekStepN<Record> subsetDtoToSelectOrder(SelectConditionStep<Record> step, DatabaseDto database,
+                                                           SubsetDto data) throws TableNotFoundException {
+        final List<OrderField<Object>> sort = new LinkedList<>();
+        for (OrderDto order : data.getOrder()) {
+            final ColumnDto column = columnIdToColumnDto(database, order.getColumnId());
+            if (order.getDirection() == null) {
+                sort.add(field(column.getInternalName()));
+                continue;
+            }
+            switch (order.getDirection()) {
+                case ASC -> sort.add(field(column.getInternalName()).asc());
+                case DESC -> sort.add(field(column.getInternalName()).desc());
+            }
+        }
+        return step.orderBy(sort);
+    }
+
+    default String subsetDtoToRawQuery(DatabaseDto database, SubsetDto data) throws TableNotFoundException, ImageNotFoundException {
+        final TableDto table = tableIdToTableDto(database, data.getTableId());
+        final List<Field<Object>> columns = table.getColumns()
+                .stream()
+                .filter(c -> data.getColumns().contains(c.getId()))
+                .map(c -> field(c.getInternalName()))
+                .toList();
+        final SelectJoinStep<Record> query = select(columns)
+                .from(table.getInternalName());
+        final SelectConditionStep<Record> where = subsetDtoToSelectConditions(query, database, data);
+        final String sql;
+        if (data.getOrder() == null) {
+            sql = where.getSQL(ParamType.INLINED);
+        } else {
+            sql = subsetDtoToSelectOrder(where, database, data)
+                    .getSQL(ParamType.INLINED);
+        }
+        log.trace("mapped prepared query: {}", sql);
+        return sql;
+    }
+
+    default ColumnDto columnIdToColumnDto(TableDto table, UUID columnId) throws TableNotFoundException {
+        final Optional<ColumnDto> optional = table.getColumns()
+                .stream()
+                .filter(c -> c.getId().equals(columnId))
+                .findFirst();
+        if (optional.isEmpty()) {
+            log.error("Failed to find filtered column with id: {}", columnId);
+            throw new TableNotFoundException("Failed to find filtered column");
+        }
+        return optional.get();
+    }
+
+    default ColumnDto columnIdToColumnDto(DatabaseDto database, UUID columnId) throws TableNotFoundException {
+        if (columnId == null) {
+            return null;
+        }
+        final Optional<ColumnDto> optional = database.getTables()
+                .stream()
+                .map(TableDto::getColumns)
+                .flatMap(List::stream)
+                .filter(column -> column.getId().equals(columnId))
+                .findFirst();
+        if (optional.isEmpty()) {
+            log.error("Failed to find column: {}", columnId);
+            throw new TableNotFoundException("Failed to find column");
+        }
+        return optional.get();
+    }
+
+    default OperatorDto operatorIdToOperatorDto(DatabaseDto database, UUID operatorId) throws ImageNotFoundException {
+        final Optional<OperatorDto> optional = database.getContainer()
+                .getImage()
+                .getOperators()
+                .stream()
+                .filter(op -> op.getId().equals(operatorId))
+                .findFirst();
+        if (optional.isEmpty()) {
+            log.error("Failed to find operator with id: {}", operatorId);
+            throw new ImageNotFoundException("Failed to find operator");
+        }
+        return optional.get();
+    }
+
+    default TableDto tableIdToTableDto(DatabaseDto database, UUID tableId) throws TableNotFoundException {
+        final Optional<TableDto> optional = database.getTables()
+                .stream()
+                .filter(t -> t.getId().equals(tableId))
+                .findFirst();
+        if (optional.isEmpty()) {
+            log.error("Failed to find table with id: {}", tableId);
+            throw new TableNotFoundException("Failed to find table");
+        }
+        return optional.get();
+    }
+
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MetadataMapper.java b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MetadataMapper.java
index 803116e6029f0e540519832dbb4865f9964957d8..7bdf8fa14118f7f6cca621cf01e7567ce608dfdc 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MetadataMapper.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/mapper/MetadataMapper.java
@@ -12,8 +12,10 @@ import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.database.table.columns.ColumnDto;
 import at.tuwien.api.identifier.IdentifierBriefDto;
 import at.tuwien.api.identifier.IdentifierDto;
+import at.tuwien.api.keycloak.TokenDto;
 import at.tuwien.api.user.UserBriefDto;
 import at.tuwien.api.user.UserDto;
+import org.keycloak.representations.AccessTokenResponse;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
 import org.mapstruct.Mappings;
@@ -45,11 +47,13 @@ public interface MetadataMapper {
 
     UserDto userDtoToUserDto(UserDto data);
 
-    UserBriefDto userDtoToUserBriefDto(UserDto data);
-
     @Mappings({
-            @Mapping(target = "databaseId", source = "tdbid")
+            @Mapping(target = "accessToken", source = "token")
     })
+    TokenDto accessTokenResponseToTokenDto(AccessTokenResponse data);
+
+    UserBriefDto userDtoToUserBriefDto(UserDto data);
+
     TableBriefDto tableDtoToTableBriefDto(TableDto data);
 
     IdentifierBriefDto identifierDtoToIdentifierBriefDto(IdentifierDto data);
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/CredentialService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/CacheService.java
similarity index 94%
rename from dbrepo-data-service/services/src/main/java/at/tuwien/service/CredentialService.java
rename to dbrepo-data-service/services/src/main/java/at/tuwien/service/CacheService.java
index 543e84ab51d03fa3c4c2a9992ce84700219efc01..c5ffcc1638253a942d7a04b562314082e94865dc 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/CredentialService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/CacheService.java
@@ -10,7 +10,7 @@ import at.tuwien.exception.*;
 
 import java.util.UUID;
 
-public interface CredentialService {
+public interface CacheService {
 
     /**
      * Gets credentials for a database with given id either from the cache (if not expired) or retrieves them from the
@@ -92,11 +92,4 @@ public interface CredentialService {
      */
     DatabaseAccessDto getAccess(UUID databaseId, UUID userId) throws RemoteUnavailableException,
             MetadataServiceException, NotAllowedException;
-
-    /**
-     * Invalidate the caches to force a refresh of access to a database with given id.
-     *
-     * @param databaseId The database id.
-     */
-    void invalidateAccess(UUID databaseId);
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/DatabaseService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/DatabaseService.java
index c325d7b33a06b9dd5d773262d79a512893b67643..8f07b6bfb29d527e99fc85504bf00c15b5424f89 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/DatabaseService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/DatabaseService.java
@@ -1,6 +1,5 @@
 package at.tuwien.service;
 
-import at.tuwien.api.database.CreateViewDto;
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.api.database.table.TableDto;
@@ -40,12 +39,13 @@ public interface DatabaseService {
     /**
      * Creates a view in given data database with view definition.
      * @param database The data database object.
-     * @param data The view definition.
+     * @param viewName The view name.
+     * @param query The view query.
      * @return The generated view.
      * @throws SQLException
      * @throws ViewMalformedException
      */
-    ViewDto createView(DatabaseDto database, CreateViewDto data) throws SQLException,
+    ViewDto createView(DatabaseDto database, String viewName, String query) throws SQLException,
             ViewMalformedException;
 
     /**
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/QueueService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/QueueService.java
index 6a03f5d767115314f6683ae726caaaf26538ebf9..1e8ba52923af628991d2994236378bab2e991e56 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/QueueService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/QueueService.java
@@ -1,5 +1,6 @@
 package at.tuwien.service;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.table.TableDto;
 
 import java.sql.SQLException;
@@ -10,9 +11,10 @@ public interface QueueService {
     /**
      * Inserts data into the table of a given database.
      *
+     * @param database    The database.
      * @param table    The table.
      * @param data     The data.
      * @throws SQLException The connection to the database could not be established.
      */
-    void insert(TableDto table, Map<String, Object> data) throws SQLException;
+    void insert(DatabaseDto database, TableDto table, Map<String, Object> data) throws SQLException;
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/SubsetService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/SubsetService.java
index 49bd560c7a6a247461a273815e6b9ed0913f1d5f..30d4baca5c0c4f555206f866cf886a4439dac58e 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/SubsetService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/SubsetService.java
@@ -2,6 +2,7 @@ package at.tuwien.service;
 
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.query.QueryDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.exception.*;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Row;
@@ -17,15 +18,15 @@ public interface SubsetService {
      * Creates a subset from the given statement at given time in the given database.
      *
      * @param database  The database.
-     * @param statement The subset statement.
+     * @param subset The subset information.
      * @param timestamp The timestamp as of which the data is queried. If smaller than <now>, historic data is queried.
      * @param userId    The user id of the creating user.
      * @return The query id.
      * @throws QueryStoreInsertException The query store refused to insert the query.
      * @throws SQLException              The connection to the database could not be established.
      */
-    UUID create(DatabaseDto database, String statement, Instant timestamp, UUID userId)
-            throws QueryStoreInsertException, SQLException;
+    UUID create(DatabaseDto database, SubsetDto subset, Instant timestamp, UUID userId)
+            throws QueryStoreInsertException, SQLException, QueryMalformedException, TableNotFoundException, ImageNotFoundException, ViewMalformedException;
 
     /**
      * Counts the subset row count of a query of a given subset in the given database.
@@ -33,11 +34,10 @@ public interface SubsetService {
      * @param database The database.
      * @param query    The subset.
      * @return The row count.
-     * @throws TableMalformedException The table is malformed.
+     * @throws QueryMalformedException The query is malformed.
      * @throws SQLException            The connection to the database could not be established.
      */
-    Long reExecuteCount(DatabaseDto database, QueryDto query) throws TableMalformedException,
-            SQLException, QueryMalformedException;
+    Long reExecuteCount(DatabaseDto database, QueryDto query) throws SQLException, QueryMalformedException;
 
     /**
      * Retrieve data from a subset in a database and optionally paginate with number of page and size of results.
@@ -74,10 +74,9 @@ public interface SubsetService {
      * @return The row count.
      * @throws SQLException            The connection to the database could not be established.
      * @throws QueryMalformedException The mapped query produced a database error.
-     * @throws TableMalformedException The database table is malformed.
      */
     Long executeCountNonPersistent(DatabaseDto database, String statement, Instant timestamp)
-            throws SQLException, QueryMalformedException, TableMalformedException;
+            throws SQLException, QueryMalformedException;
 
     /**
      * Finds a query in the query store of the given database id and query id.
@@ -99,14 +98,14 @@ public interface SubsetService {
      * Inserts a query and metadata to the query store of a given database id.
      *
      * @param database The database.
-     * @param query    The query statement.
+     * @param statement    The query statement.
      * @param userId   The user id.
      * @return The stored query id on success.
      * @throws SQLException              The connection to the database could not be established.
      * @throws QueryStoreInsertException The query store failed to insert the query.
      */
-    UUID storeQuery(DatabaseDto database, String query, Instant timestamp, UUID userId) throws SQLException,
-            QueryStoreInsertException;
+    UUID storeQuery(DatabaseDto database, String statement, Instant timestamp, UUID userId) throws SQLException,
+            QueryStoreInsertException, ViewMalformedException;
 
     /**
      * Persists a query to be displayed in the frontend.
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/TableService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/TableService.java
index f664a82cf32050512f5eeb7d9e2b206289153568..bb2b53432c41e0a521165c0bbdfb197579936331 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/TableService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/TableService.java
@@ -1,5 +1,6 @@
 package at.tuwien.service;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.query.ImportDto;
 import at.tuwien.api.database.table.*;
 import at.tuwien.exception.*;
@@ -19,7 +20,7 @@ public interface TableService {
      * @throws TableMalformedException The table statistic generation was unsuccessful, likely due to a bug in the mapping.
      * @throws TableNotFoundException  The table could not be inspected in the data database.
      */
-    TableStatisticDto getStatistics(TableDto table) throws SQLException, TableMalformedException,
+    TableStatisticDto getStatistics(DatabaseDto database, TableDto table) throws SQLException, TableMalformedException,
             TableNotFoundException;
 
     /**
@@ -31,7 +32,7 @@ public interface TableService {
      * @throws TableMalformedException The table schema is malformed.
      * @throws TableNotFoundException  The table could not be inspected in the metadata database.
      */
-    void updateTable(TableDto table, TableUpdateDto data) throws SQLException,
+    void updateTable(DatabaseDto database, TableDto table, TableUpdateDto data) throws SQLException,
             TableMalformedException, TableNotFoundException;
 
     /**
@@ -41,7 +42,7 @@ public interface TableService {
      * @throws SQLException            Failed to parse SQL query, contains invalid syntax.
      * @throws QueryMalformedException The drop table query is malformed.
      */
-    void delete(TableDto table) throws SQLException, QueryMalformedException;
+    void delete(DatabaseDto database, TableDto table) throws SQLException, QueryMalformedException;
 
     /**
      * Obtains the table history for a given table object.
@@ -52,7 +53,7 @@ public interface TableService {
      * @throws SQLException           Failed to parse SQL query, contains invalid syntax.
      * @throws TableNotFoundException The table could not be found in the data database.
      */
-    List<TableHistoryDto> history(TableDto table, Long size) throws SQLException, TableNotFoundException;
+    List<TableHistoryDto> history(DatabaseDto database, TableDto table, Long size) throws SQLException, TableNotFoundException;
 
     /**
      * Obtains the table data tuples count at time.
@@ -63,7 +64,7 @@ public interface TableService {
      * @throws SQLException            Failed to parse SQL query, contains invalid syntax.
      * @throws QueryMalformedException The count query is malformed, likely due to a bug in the application.
      */
-    Long getCount(TableDto table, Instant timestamp) throws SQLException,
+    Long getCount(DatabaseDto database, TableDto table, Instant timestamp) throws SQLException,
             QueryMalformedException;
 
     /**
@@ -78,7 +79,7 @@ public interface TableService {
      * @throws SQLException                Failed to parse SQL query, contains invalid syntax.
      * @throws QueryMalformedException     The import query is malformed, likely due to a bug in the application.
      */
-    void importDataset(TableDto table, ImportDto data) throws MalformedException, StorageNotFoundException,
+    void importDataset(DatabaseDto database, TableDto table, ImportDto data) throws MalformedException, StorageNotFoundException,
             StorageUnavailableException, SQLException, QueryMalformedException, TableMalformedException;
 
     /**
@@ -90,7 +91,7 @@ public interface TableService {
      * @throws TableMalformedException The tuple is malformed and does not fit the table schema.
      * @throws QueryMalformedException The delete query is malformed, likely due to a bug in the application.
      */
-    void deleteTuple(TableDto table, TupleDeleteDto data) throws SQLException,
+    void deleteTuple(DatabaseDto database, TableDto table, TupleDeleteDto data) throws SQLException,
             TableMalformedException, QueryMalformedException;
 
     /**
@@ -104,7 +105,7 @@ public interface TableService {
      * @throws StorageUnavailableException Failed to establish a connection with the Storage Service.
      * @throws StorageNotFoundException    The storage service was not able to find the dataset for import.
      */
-    void createTuple(TableDto table, TupleDto data) throws SQLException,
+    void createTuple(DatabaseDto database, TableDto table, TupleDto data) throws SQLException,
             QueryMalformedException, TableMalformedException, StorageUnavailableException, StorageNotFoundException;
 
     /**
@@ -116,6 +117,6 @@ public interface TableService {
      * @throws QueryMalformedException The update query is malformed, likely due to a bug in the application.
      * @throws TableMalformedException The tuple is malformed and does not fit the table schema.
      */
-    void updateTuple(TableDto table, TupleUpdateDto data) throws SQLException,
+    void updateTuple(DatabaseDto database, TableDto table, TupleUpdateDto data) throws SQLException,
             QueryMalformedException, TableMalformedException;
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/ViewService.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/ViewService.java
index 8f721f9974b0a35d5158fba0d67f9bf7a95faf70..7f64f72ebefeb7daa3811aedf5f41765e2ec28d6 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/ViewService.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/ViewService.java
@@ -1,5 +1,6 @@
 package at.tuwien.service;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.exception.QueryMalformedException;
 import at.tuwien.exception.ViewMalformedException;
@@ -12,20 +13,22 @@ public interface ViewService {
     /**
      * Deletes a view.
      *
+     * @param database The database.
      * @param view The view.
      * @throws SQLException           The connection to the data database was unsuccessful.
      * @throws ViewMalformedException The query is malformed and was rejected by the data database.
      */
-    void delete(ViewDto view) throws SQLException, ViewMalformedException;
+    void delete(DatabaseDto database, ViewDto view) throws SQLException, ViewMalformedException;
 
     /**
      * Counts tuples in a view at system-versioned timestamp.
      *
+     * @param database The database.
      * @param view      The view.
      * @param timestamp The system-versioned timestamp.
      * @return The number of tuples.
      * @throws SQLException            The connection to the data database was unsuccessful.
      * @throws QueryMalformedException The query is malformed and was rejected by the data database.
      */
-    Long count(ViewDto view, Instant timestamp) throws SQLException, QueryMalformedException;
+    Long count(DatabaseDto database, ViewDto view, Instant timestamp) throws SQLException, QueryMalformedException;
 }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CredentialServiceImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CacheServiceImpl.java
similarity index 88%
rename from dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CredentialServiceImpl.java
rename to dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CacheServiceImpl.java
index 8f3553515f386afcc91627a0cecd11a05d263f27..c23f77edd68af67fbe09d3d9c5b4746b3eebbd83 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CredentialServiceImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/CacheServiceImpl.java
@@ -8,7 +8,7 @@ import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.user.UserDto;
 import at.tuwien.exception.*;
 import at.tuwien.gateway.MetadataServiceGateway;
-import at.tuwien.service.CredentialService;
+import at.tuwien.service.CacheService;
 import com.github.benmanes.caffeine.cache.Cache;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -18,7 +18,7 @@ import java.util.UUID;
 
 @Log4j2
 @Service
-public class CredentialServiceImpl implements CredentialService {
+public class CacheServiceImpl implements CacheService {
 
     private final MetadataServiceGateway gateway;
     private final Cache<UUID, UserDto> userCache;
@@ -29,10 +29,10 @@ public class CredentialServiceImpl implements CredentialService {
     private final Cache<UUID, DatabaseAccessDto> accessCache;
 
     @Autowired
-    public CredentialServiceImpl(MetadataServiceGateway gateway, Cache<UUID, UserDto> userCache,
-                                 Cache<UUID, ViewDto> viewCache, Cache<UUID, TableDto> tableCache,
-                                 Cache<UUID, DatabaseAccessDto> accessCache, Cache<UUID, DatabaseDto> databaseCache,
-                                 Cache<UUID, ContainerDto> containerCache) {
+    public CacheServiceImpl(MetadataServiceGateway gateway, Cache<UUID, UserDto> userCache,
+                            Cache<UUID, ViewDto> viewCache, Cache<UUID, TableDto> tableCache,
+                            Cache<UUID, DatabaseAccessDto> accessCache, Cache<UUID, DatabaseDto> databaseCache,
+                            Cache<UUID, ContainerDto> containerCache) {
         this.gateway = gateway;
         this.userCache = userCache;
         this.viewCache = viewCache;
@@ -70,12 +70,6 @@ public class CredentialServiceImpl implements CredentialService {
         return table;
     }
 
-    @Override
-    public void invalidateAccess(UUID databaseId) {
-        accessCache.invalidate(databaseId);
-        log.debug("invalidated access for database with id {} in cache", databaseId);
-    }
-
     @Override
     public ContainerDto getContainer(UUID id) throws RemoteUnavailableException, MetadataServiceException,
             ContainerNotFoundException {
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DataConnector.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DataConnector.java
index 37a345426ae560aee202d5acbcc4d62d79f85f2b..6e6e316b5af1b2e21cbc3f0d1ad1dc7e2232dca4 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DataConnector.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DataConnector.java
@@ -2,8 +2,6 @@ package at.tuwien.service.impl;
 
 import at.tuwien.api.container.ContainerDto;
 import at.tuwien.api.database.DatabaseDto;
-import at.tuwien.api.database.ViewDto;
-import at.tuwien.api.database.table.TableDto;
 import com.mchange.v2.c3p0.ComboPooledDataSource;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.stereotype.Service;
@@ -25,14 +23,6 @@ public abstract class DataConnector {
         return dataSource;
     }
 
-    public ComboPooledDataSource getDataSource(ViewDto view) {
-        return getDataSource(view.getDatabase().getContainer(), view.getDatabase().getInternalName());
-    }
-
-    public ComboPooledDataSource getDataSource(TableDto table) {
-        return getDataSource(table.getDatabase().getContainer(), table.getDatabase().getInternalName());
-    }
-
     public ComboPooledDataSource getDataSource(ContainerDto container) {
         return getDataSource(container, null);
     }
@@ -48,10 +38,6 @@ public abstract class DataConnector {
         return sb.toString();
     }
 
-    public String getSparkUrl(TableDto table) {
-        return getSparkUrl(table.getDatabase().getContainer(), table.getDatabase().getInternalName());
-    }
-
     public String getSparkUrl(DatabaseDto databaseDto) {
         return getSparkUrl(databaseDto.getContainer(), databaseDto.getInternalName());
     }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DatabaseServiceMariaDbImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DatabaseServiceMariaDbImpl.java
index f7e12c69f6d2937850d0e2d9a2973b1e6e7dadf2..846fa86a4c967c04ed1a6b9c2b60befdbe82096c 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DatabaseServiceMariaDbImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/DatabaseServiceMariaDbImpl.java
@@ -1,6 +1,5 @@
 package at.tuwien.service.impl;
 
-import at.tuwien.api.database.CreateViewDto;
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.api.database.table.TableDto;
@@ -59,7 +58,7 @@ public class DatabaseServiceMariaDbImpl extends DataConnector implements Databas
                 throw new ViewNotFoundException("Failed to find view in the information schema");
             }
             final ViewDto view = dataMapper.schemaResultSetToView(database, resultSet1);
-            view.setVdbid(database.getId());
+            view.setDatabaseId(database.getId());
             view.setOwner(database.getOwner());
             /* obtain view columns */
             start = System.currentTimeMillis();
@@ -97,7 +96,8 @@ public class DatabaseServiceMariaDbImpl extends DataConnector implements Databas
         try {
             /* create table if not exists */
             final long start = System.currentTimeMillis();
-            connection.prepareStatement(mariaDbMapper.tableCreateDtoToCreateTableRawQuery(data))
+            connection.prepareStatement(mariaDbMapper.tableCreateDtoToCreateTableRawQuery(database.getInternalName(),
+                            data))
                     .execute();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             connection.commit();
@@ -112,34 +112,33 @@ public class DatabaseServiceMariaDbImpl extends DataConnector implements Databas
         } finally {
             dataSource.close();
         }
-        log.info("Created table with name {}", tableName);
-        final TableDto table = inspectTable(database, tableName);
-        return table;
+        log.info("Created table with name {}.{}", database.getInternalName(), tableName);
+        return inspectTable(database, tableName);
     }
 
     @Override
-    public ViewDto createView(DatabaseDto database, CreateViewDto data) throws SQLException,
+    public ViewDto createView(DatabaseDto database, String viewName, String query) throws SQLException,
             ViewMalformedException {
         final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         ViewDto view = ViewDto.builder()
-                .name(data.getName())
-                .internalName(mariaDbMapper.nameToInternalName(data.getName()))
-                .query(data.getQuery())
+                .name(viewName)
+                .internalName(mariaDbMapper.nameToInternalName(viewName))
+                .query(query)
                 .queryHash(Hashing.sha256()
-                        .hashString(data.getQuery(), StandardCharsets.UTF_8)
+                        .hashString(query, StandardCharsets.UTF_8)
                         .toString())
                 .isPublic(database.getIsPublic())
                 .owner(database.getOwner())
                 .identifiers(new LinkedList<>())
                 .isInitialView(false)
-                .vdbid(database.getId())
+                .databaseId(database.getId())
                 .columns(new LinkedList<>())
                 .build();
         try {
             /* create view if not exists */
             final long start = System.currentTimeMillis();
-            connection.prepareStatement(mariaDbMapper.viewCreateRawQuery(view.getInternalName(), data.getQuery()))
+            connection.prepareStatement(mariaDbMapper.viewCreateRawQuery(view.getInternalName(), query))
                     .execute();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             /* select view columns */
@@ -293,7 +292,7 @@ public class DatabaseServiceMariaDbImpl extends DataConnector implements Databas
                             });
                 }
             }
-            table.setTdbid(database.getId());
+            table.setDatabaseId(database.getId());
             table.setOwner(database.getOwner());
             final TableDto tmpTable = table;
             tmpTable.getColumns()
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/QueueServiceRabbitMqImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/QueueServiceRabbitMqImpl.java
index 4db29335fbfc4cbdbb8086a2009cb588613d1969..07b889d536c14719988c768b16998ab9fcc1b55c 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/QueueServiceRabbitMqImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/QueueServiceRabbitMqImpl.java
@@ -1,5 +1,6 @@
 package at.tuwien.service.impl;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.database.table.columns.ColumnDto;
 import at.tuwien.mapper.DataMapper;
@@ -30,13 +31,14 @@ public class QueueServiceRabbitMqImpl extends DataConnector implements QueueServ
     }
 
     @Override
-    public void insert(TableDto table, Map<String, Object> data) throws SQLException {
-        final ComboPooledDataSource dataSource = getDataSource(table);
+    public void insert(DatabaseDto database, TableDto table, Map<String, Object> data) throws SQLException {
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             final int[] idx = new int[]{1};
             final PreparedStatement preparedStatement = connection.prepareStatement(
-                    dataMapper.rabbitMqTupleToInsertOrUpdateQuery(metadataMapper.tableDtoToTableDto(table), data));
+                    dataMapper.rabbitMqTupleToInsertOrUpdateQuery(database.getInternalName(),
+                            metadataMapper.tableDtoToTableDto(table), data));
             for (Map.Entry<String, Object> entry : data.entrySet()) {
                 final Optional<ColumnDto> optional = table.getColumns().stream().filter(c -> c.getInternalName().equals(entry.getKey())).findFirst();
                 if (optional.isEmpty()) {
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/SubsetServiceMariaDbImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/SubsetServiceMariaDbImpl.java
index 8adaae9c6a065296fd42ea66e5cad8328cc6e06a..869f12bde2b6182d4ca1504a76d33019a55d6c97 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/SubsetServiceMariaDbImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/SubsetServiceMariaDbImpl.java
@@ -2,6 +2,7 @@ package at.tuwien.service.impl;
 
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.query.QueryDto;
+import at.tuwien.api.database.query.SubsetDto;
 import at.tuwien.api.identifier.IdentifierBriefDto;
 import at.tuwien.api.identifier.IdentifierTypeDto;
 import at.tuwien.exception.*;
@@ -53,11 +54,10 @@ public class SubsetServiceMariaDbImpl extends DataConnector implements SubsetSer
                     .option("query", query)
                     .load();
         } catch (Exception e) {
-            if (e instanceof ExtendedAnalysisException exception) {
-                if (exception.getSimpleMessage().contains("TABLE_OR_VIEW_NOT_FOUND")) {
-                    log.error("Failed to find named reference: {}", exception.getSimpleMessage());
-                    throw new TableNotFoundException("Failed to find named reference: " + exception.getSimpleMessage()) /* remove throwable on purpose, clutters the output */;
-                }
+            if (e instanceof ExtendedAnalysisException && e.getMessage().contains("TABLE_OR_VIEW_NOT_FOUND")
+                    || e instanceof SQLSyntaxErrorException && e.getMessage().contains("doesn't exist")) {
+                log.error("Failed to find named reference: {}", e.getMessage());
+                throw new TableNotFoundException("Failed to find named reference: " + e.getMessage()) /* remove throwable on purpose, clutters the output */;
             }
             log.error("Malformed query: {}", e.getMessage());
             throw new QueryMalformedException("Malformed query: " + e.getMessage(), e);
@@ -65,14 +65,15 @@ public class SubsetServiceMariaDbImpl extends DataConnector implements SubsetSer
     }
 
     @Override
-    public UUID create(DatabaseDto database, String statement, Instant timestamp, UUID userId)
-            throws QueryStoreInsertException, SQLException {
+    public UUID create(DatabaseDto database, SubsetDto subset, Instant timestamp, UUID userId)
+            throws QueryStoreInsertException, SQLException, QueryMalformedException, TableNotFoundException,
+            ImageNotFoundException, ViewMalformedException {
+        final String statement = mariaDbMapper.subsetDtoToRawQuery(database, subset);
         return storeQuery(database, statement, timestamp, userId);
     }
 
     @Override
-    public Long reExecuteCount(DatabaseDto database, QueryDto query) throws TableMalformedException,
-            SQLException, QueryMalformedException {
+    public Long reExecuteCount(DatabaseDto database, QueryDto query) throws SQLException, QueryMalformedException {
         return executeCountNonPersistent(database, query.getQuery(), query.getExecution());
     }
 
@@ -112,7 +113,7 @@ public class SubsetServiceMariaDbImpl extends DataConnector implements SubsetSer
 
     @Override
     public Long executeCountNonPersistent(DatabaseDto database, String statement, Instant timestamp)
-            throws SQLException, QueryMalformedException, TableMalformedException {
+            throws SQLException, QueryMalformedException {
         final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
@@ -123,7 +124,7 @@ public class SubsetServiceMariaDbImpl extends DataConnector implements SubsetSer
             return mariaDbMapper.resultSetToNumber(resultSet);
         } catch (SQLException e) {
             log.error("Failed to map object: {}", e.getMessage());
-            throw new TableMalformedException("Failed to map object: " + e.getMessage(), e);
+            throw new QueryMalformedException("Failed to map object: " + e.getMessage(), e);
         } finally {
             dataSource.close();
         }
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/TableServiceMariaDbImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/TableServiceMariaDbImpl.java
index 466f7539fd250666962d08a75ffffd5aa61480fa..a646de02b3b560a7dc6967c108a4f7369e33fd65 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/TableServiceMariaDbImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/TableServiceMariaDbImpl.java
@@ -1,5 +1,6 @@
 package at.tuwien.service.impl;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.query.ImportDto;
 import at.tuwien.api.database.table.*;
 import at.tuwien.api.database.table.columns.ColumnDto;
@@ -50,9 +51,9 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
     }
 
     @Override
-    public TableStatisticDto getStatistics(TableDto table) throws SQLException, TableMalformedException,
+    public TableStatisticDto getStatistics(DatabaseDto database, TableDto table) throws SQLException, TableMalformedException,
             TableNotFoundException {
-        final ComboPooledDataSource dataSource = getDataSource(table);
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         final TableStatisticDto statistic;
         try {
@@ -60,14 +61,14 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
             final long start = System.currentTimeMillis();
             final String query = mariaDbMapper.tableColumnStatisticsSelectRawQuery(table.getColumns(), table.getInternalName());
             if (query == null) {
-                log.debug("table {}.{} does not have columns that can be analysed for statistical properties (i.e. no numeric columns)", table.getDatabase().getInternalName(), table.getInternalName());
+                log.debug("table {}.{} does not have columns that can be analysed for statistical properties", database.getInternalName(), table.getInternalName());
                 statistic = null;
             } else {
                 final ResultSet resultSet = connection.prepareStatement(query)
                         .executeQuery();
                 log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
                 statistic = dataMapper.resultSetToTableStatistic(resultSet);
-                final TableDto tmpTable = databaseService.inspectTable(table.getDatabase(), table.getInternalName());
+                final TableDto tmpTable = databaseService.inspectTable(database, table.getInternalName());
                 statistic.setAvgRowLength(tmpTable.getAvgRowLength());
                 statistic.setDataLength(tmpTable.getDataLength());
                 statistic.setMaxDataLength(tmpTable.getMaxDataLength());
@@ -91,14 +92,15 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
     }
 
     @Override
-    public void updateTable(TableDto table, TableUpdateDto data) throws SQLException,
+    public void updateTable(DatabaseDto database, TableDto table, TableUpdateDto data) throws SQLException,
             TableMalformedException {
-        final ComboPooledDataSource dataSource = getDataSource(table.getDatabase());
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* create table if not exists */
             final long start = System.currentTimeMillis();
-            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tableNameToUpdateTableRawQuery(table.getInternalName()));
+            final PreparedStatement statement = connection.prepareStatement(
+                    mariaDbMapper.tableNameToUpdateTableRawQuery(database.getInternalName(), table.getInternalName()));
             log.trace("prepare with arg 1={}", data.getDescription());
             if (data.getDescription() == null) {
                 statement.setString(1, "");
@@ -115,17 +117,18 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         } finally {
             dataSource.close();
         }
-        log.info("Updated table with name {}", table.getInternalName());
+        log.info("Updated table with name {}.{}", database.getInternalName(), table.getInternalName());
     }
 
     @Override
-    public void delete(TableDto table) throws SQLException, QueryMalformedException {
-        final ComboPooledDataSource dataSource = getDataSource(table.getDatabase());
+    public void delete(DatabaseDto database, TableDto table) throws SQLException, QueryMalformedException {
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* create table if not exists */
             final long start = System.currentTimeMillis();
-            connection.prepareStatement(mariaDbMapper.dropTableRawQuery(table.getInternalName()))
+            connection.prepareStatement(mariaDbMapper.dropTableRawQuery(database.getInternalName(),
+                            table.getInternalName()))
                     .execute();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             connection.commit();
@@ -136,63 +139,63 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         } finally {
             dataSource.close();
         }
-        log.info("Deleted table with name {}", table.getInternalName());
+        log.info("Deleted table with name {}.{}", database.getInternalName(), table.getInternalName());
     }
 
     @Override
-    public List<TableHistoryDto> history(TableDto table, Long size) throws SQLException,
+    public List<TableHistoryDto> history(DatabaseDto database, TableDto table, Long size) throws SQLException,
             TableNotFoundException {
-        final ComboPooledDataSource dataSource = getDataSource(table.getDatabase());
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         final List<TableHistoryDto> history;
         try {
             /* find table data */
             final long start = System.currentTimeMillis();
             final ResultSet resultSet = connection.prepareStatement(mariaDbMapper.selectHistoryRawQuery(
-                            table.getDatabase().getInternalName(), table.getInternalName(), size))
+                            database.getInternalName(), table.getInternalName(), size))
                     .executeQuery();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             history = dataMapper.resultSetToTableHistory(resultSet);
             connection.commit();
         } catch (SQLException e) {
             connection.rollback();
-            log.error("Failed to find history for table {}.{}: {}", table.getDatabase(), table.getInternalName(), e.getMessage());
-            throw new TableNotFoundException("Failed to find history for table " + table.getDatabase() + "." + table.getInternalName() + ": " + e.getMessage(), e);
+            log.error("Failed to find history for table {}.{}: {}", database, table.getInternalName(), e.getMessage());
+            throw new TableNotFoundException("Failed to find history for table " + database + "." + table.getInternalName() + ": " + e.getMessage(), e);
         } finally {
             dataSource.close();
         }
-        log.info("Find history for table {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Find history for table {}.{}", database.getInternalName(), table.getInternalName());
         return history;
     }
 
     @Override
-    public Long getCount(TableDto table, Instant timestamp) throws SQLException,
+    public Long getCount(DatabaseDto database, TableDto table, Instant timestamp) throws SQLException,
             QueryMalformedException {
-        final ComboPooledDataSource dataSource = getDataSource(table.getDatabase());
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         final Long queryResult;
         try {
             /* find table data */
             final long start = System.currentTimeMillis();
             final ResultSet resultSet = connection.prepareStatement(mariaDbMapper.selectCountRawQuery(
-                            table.getDatabase().getInternalName(), table.getInternalName(), timestamp))
+                            database.getInternalName(), table.getInternalName(), timestamp))
                     .executeQuery();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             queryResult = mariaDbMapper.resultSetToNumber(resultSet);
             connection.commit();
         } catch (SQLException e) {
             connection.rollback();
-            log.error("Failed to find row count from table {}.{}: {}", table.getDatabase(), table.getInternalName(), e.getMessage());
-            throw new QueryMalformedException("Failed to find row count from table " + table.getDatabase() + "." + table.getInternalName() + ": " + e.getMessage(), e);
+            log.error("Failed to find row count from table {}.{}: {}", database, table.getInternalName(), e.getMessage());
+            throw new QueryMalformedException("Failed to find row count from table " + database + "." + table.getInternalName() + ": " + e.getMessage(), e);
         } finally {
             dataSource.close();
         }
-        log.info("Find row count from table {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Find row count from table {}.{}", database.getInternalName(), table.getInternalName());
         return queryResult;
     }
 
     @Override
-    public void importDataset(TableDto table, ImportDto data) throws MalformedException,
+    public void importDataset(DatabaseDto database, TableDto table, ImportDto data) throws MalformedException,
             StorageNotFoundException, StorageUnavailableException, SQLException, QueryMalformedException,
             TableMalformedException {
         final List<String> columns = table.getColumns()
@@ -202,8 +205,8 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         final Dataset<Row> dataset = storageService.loadDataset(columns, data.getLocation(),
                 String.valueOf(data.getSeparator()), data.getHeader());
         final Properties properties = new Properties();
-        properties.setProperty("user", table.getDatabase().getContainer().getUsername());
-        properties.setProperty("password", table.getDatabase().getContainer().getPassword());
+        properties.setProperty("user", database.getContainer().getUsername());
+        properties.setProperty("password", database.getContainer().getPassword());
         final String temporaryTable = table.getInternalName() + "_tmp";
         try {
             log.trace("import dataset to temporary table: {}", temporaryTable);
@@ -211,7 +214,7 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
                     .mode(SaveMode.Overwrite)
                     .option("header", data.getHeader())
                     .option("inferSchema", "true")
-                    .jdbc(getSparkUrl(table), temporaryTable, properties);
+                    .jdbc(getSparkUrl(database), temporaryTable, properties);
         } catch (Exception e) {
             if (e instanceof AnalysisException exception) {
                 final String message = exception.getSimpleMessage()
@@ -222,8 +225,8 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
             log.error("Failed to write dataset: {}", e.getMessage());
             throw new MalformedException("Failed to write dataset: " + e.getMessage()) /* remove throwable on purpose, clutters the output */;
         }
-        /* import .csv from sidecar to database */
-        final ComboPooledDataSource dataSource = getDataSource(table);
+        /* import .csv to database */
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* import tuple */
@@ -237,25 +240,27 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
             throw new QueryMalformedException("Failed to import tuple: " + e.getMessage(), e);
         } finally {
             /* delete temporary table */
-            connection.prepareStatement(mariaDbMapper.dropTableRawQuery(temporaryTable, false))
+            connection.prepareStatement(mariaDbMapper.dropTableRawQuery(database.getInternalName(), temporaryTable,
+                            false))
                     .execute();
             connection.commit();
             dataSource.close();
         }
-        log.info("Imported dataset into table: {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Imported dataset into table: {}.{}", database, table.getInternalName());
     }
 
     @Override
-    public void deleteTuple(TableDto table, TupleDeleteDto data) throws SQLException,
+    public void deleteTuple(DatabaseDto database, TableDto table, TupleDeleteDto data) throws SQLException,
             TableMalformedException, QueryMalformedException {
         log.trace("delete tuple: {}", data);
         /* prepare the statement */
-        final ComboPooledDataSource dataSource = getDataSource(table);
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* import tuple */
             final int[] idx = new int[]{1};
-            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawDeleteQuery(table, data));
+            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawDeleteQuery(
+                    database.getInternalName(), table, data));
             for (String column : data.getKeys().keySet()) {
                 mariaDbMapper.prepareStatementWithColumnTypeObject(statement,
                         getColumnType(table.getColumns(), column), idx[0], column, data.getKeys().get(column));
@@ -272,12 +277,12 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         } finally {
             dataSource.close();
         }
-        log.info("Deleted tuple(s) from table: {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Deleted tuple(s) from table: {}.{}", database.getInternalName(), table.getInternalName());
     }
 
     @Override
-    public void createTuple(TableDto table, TupleDto data) throws SQLException, QueryMalformedException,
-            TableMalformedException, StorageUnavailableException, StorageNotFoundException {
+    public void createTuple(DatabaseDto database, TableDto table, TupleDto data) throws SQLException,
+            QueryMalformedException, TableMalformedException, StorageUnavailableException, StorageNotFoundException {
         log.trace("create tuple: {}", data);
         /* for each LOB-like data-column, retrieve the bytes and replace the value */
         for (String key : data.getData().keySet()) {
@@ -294,12 +299,13 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
                     .replace(key, blob);
         }
         /* prepare the statement */
-        final ComboPooledDataSource dataSource = getDataSource(table);
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* create tuple */
             final int[] idx = new int[]{1};
-            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawCreateQuery(table, data));
+            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawCreateQuery(
+                    database.getInternalName(), table, data));
             for (Map.Entry<String, Object> entry : data.getData().entrySet()) {
                 mariaDbMapper.prepareStatementWithColumnTypeObject(statement,
                         getColumnType(table.getColumns(), entry.getKey()), idx[0], entry.getKey(), entry.getValue());
@@ -316,19 +322,20 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         } finally {
             dataSource.close();
         }
-        log.info("Created tuple(s) in table: {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Created tuple(s) in table: {}.{}", database.getInternalName(), table.getInternalName());
     }
 
     @Override
-    public void updateTuple(TableDto table, TupleUpdateDto data) throws SQLException,
+    public void updateTuple(DatabaseDto database, TableDto table, TupleUpdateDto data) throws SQLException,
             QueryMalformedException, TableMalformedException {
         log.trace("update tuple: {}", data);
         /* prepare the statement */
-        final ComboPooledDataSource dataSource = getDataSource(table);
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             final int[] idx = new int[]{1};
-            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawUpdateQuery(table, data));
+            final PreparedStatement statement = connection.prepareStatement(mariaDbMapper.tupleToRawUpdateQuery(
+                    database.getInternalName(), table, data));
             /* set data */
             for (Map.Entry<String, Object> entry : data.getData().entrySet()) {
                 mariaDbMapper.prepareStatementWithColumnTypeObject(statement,
@@ -352,7 +359,7 @@ public class TableServiceMariaDbImpl extends DataConnector implements TableServi
         } finally {
             dataSource.close();
         }
-        log.info("Updated tuple(s) from table: {}.{}", table.getDatabase(), table.getInternalName());
+        log.info("Updated tuple(s) from table: {}.{}", database.getInternalName(), table.getInternalName());
     }
 
     public ColumnTypeDto getColumnType(List<ColumnDto> columns, String name) throws QueryMalformedException {
diff --git a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/ViewServiceMariaDbImpl.java b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/ViewServiceMariaDbImpl.java
index fff524047e10b575f773fe23656f86944514843a..c1ba33ae4ae91639ba14d715a569b4b596880625 100644
--- a/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/ViewServiceMariaDbImpl.java
+++ b/dbrepo-data-service/services/src/main/java/at/tuwien/service/impl/ViewServiceMariaDbImpl.java
@@ -1,5 +1,6 @@
 package at.tuwien.service.impl;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.exception.QueryMalformedException;
 import at.tuwien.exception.ViewMalformedException;
@@ -27,13 +28,14 @@ public class ViewServiceMariaDbImpl extends DataConnector implements ViewService
     }
 
     @Override
-    public void delete(ViewDto view) throws SQLException, ViewMalformedException {
-        final ComboPooledDataSource dataSource = getDataSource(view);
+    public void delete(DatabaseDto database, ViewDto view) throws SQLException, ViewMalformedException {
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         try {
             /* drop view if exists */
             final long start = System.currentTimeMillis();
-            connection.prepareStatement(mariaDbMapper.dropViewRawQuery(view.getInternalName()))
+            connection.prepareStatement(mariaDbMapper.dropViewRawQuery(database.getInternalName(),
+                            view.getInternalName()))
                     .execute();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             connection.commit();
@@ -44,32 +46,32 @@ public class ViewServiceMariaDbImpl extends DataConnector implements ViewService
         } finally {
             dataSource.close();
         }
-        log.info("Deleted view {}.{}", view.getDatabase(), view.getInternalName());
+        log.info("Deleted view {}.{}", database.getInternalName(), view.getInternalName());
     }
 
     @Override
-    public Long count(ViewDto view, Instant timestamp) throws SQLException,
+    public Long count(DatabaseDto database, ViewDto view, Instant timestamp) throws SQLException,
             QueryMalformedException {
-        final ComboPooledDataSource dataSource = getDataSource(view);
+        final ComboPooledDataSource dataSource = getDataSource(database);
         final Connection connection = dataSource.getConnection();
         final Long queryResult;
         try {
             /* find view data */
             final long start = System.currentTimeMillis();
             final ResultSet resultSet = connection.prepareStatement(mariaDbMapper.selectCountRawQuery(
-                            view.getDatabase().getInternalName(), view.getInternalName(), timestamp))
+                            database.getInternalName(), view.getInternalName(), timestamp))
                     .executeQuery();
             log.trace("executed statement in {} ms", System.currentTimeMillis() - start);
             queryResult = mariaDbMapper.resultSetToNumber(resultSet);
             connection.commit();
         } catch (SQLException e) {
             connection.rollback();
-            log.error("Failed to find row count from view {}.{}: {}", view.getDatabase(), view.getInternalName(), e.getMessage());
-            throw new QueryMalformedException("Failed to find row count from view " + view.getDatabase() + "." + view.getInternalName() + ": " + e.getMessage(), e);
+            log.error("Failed to find row count from view {}.{}: {}", database.getInternalName(), view.getInternalName(), e.getMessage());
+            throw new QueryMalformedException("Failed to find row count from view " + database.getInternalName() + "." + view.getInternalName() + ": " + e.getMessage(), e);
         } finally {
             dataSource.close();
         }
-        log.info("Find row count from view {}.{}", view.getDatabase(), view.getInternalName());
+        log.info("Find row count from view {}.{}", database.getInternalName(), view.getInternalName());
         return queryResult;
     }
 
diff --git a/dbrepo-metadata-db/1_setup-schema.sql b/dbrepo-metadata-db/1_setup-schema.sql
index 17d303ea7d6001e73a55b19cc286e8d9980e1d35..12e0f02a169c969ea0036652dc2198b79e492ebf 100644
--- a/dbrepo-metadata-db/1_setup-schema.sql
+++ b/dbrepo-metadata-db/1_setup-schema.sql
@@ -280,6 +280,7 @@ CREATE TABLE IF NOT EXISTS `mdb_view`
     last_modified    TIMESTAMP,
     owned_by         VARCHAR(36)  NOT NULL,
     PRIMARY KEY (`id`),
+    UNIQUE (`vdbid`, `internal_name`),
     FOREIGN KEY (`vdbid`) REFERENCES mdb_databases (`id`),
     FOREIGN KEY (`owned_by`) REFERENCES mdb_users (`id`)
 ) WITH SYSTEM VERSIONING;
@@ -596,32 +597,14 @@ VALUES ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Equal operator', '=',
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Greater than or equal operator', '>=',
         'https://mariadb.com/kb/en/greater-than-or-equal/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Not equal operator', '!=', 'https://mariadb.com/kb/en/not-equal/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Addition operator', '+',
-        'https://mariadb.com/kb/en/addition-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Division operator', '/',
-        'https://mariadb.com/kb/en/division-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Modulo operator', '%', 'https://mariadb.com/kb/en/modulo-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Multiplication operator', '*',
-        'https://mariadb.com/kb/en/multiplication-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Subtraction operator', '-',
-        'https://mariadb.com/kb/en/subtraction-operator-/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'LIKE', 'LIKE', 'https://mariadb.com/kb/en/like/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT LIKE', 'NOT LIKE', 'https://mariadb.com/kb/en/not-like/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IN', 'IN', 'https://mariadb.com/kb/en/in/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT IN', 'NOT IN', 'https://mariadb.com/kb/en/not-in/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS', 'IS', 'https://mariadb.com/kb/en/is/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NOT', 'IS NOT', 'https://mariadb.com/kb/en/is-not/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NOT NULL', 'IS NOT NULL', 'https://mariadb.com/kb/en/is-not-null/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NULL', 'IS NULL', 'https://mariadb.com/kb/en/is-null/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'ISNULL', 'ISNULL', 'https://mariadb.com/kb/en/isnull/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'REGEXP', 'REGEXP', 'https://mariadb.com/kb/en/regexp/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT REGEXP', 'NOT REGEXP', 'https://mariadb.com/kb/en/not-regexp/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise AND', '&', 'https://mariadb.com/kb/en/bitwise_and/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise OR', '|', 'https://mariadb.com/kb/en/bitwise-or/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise XOR', '^', 'https://mariadb.com/kb/en/bitwise-xor/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise NOT', '~', 'https://mariadb.com/kb/en/bitwise-not/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Left shift', '<<', 'https://mariadb.com/kb/en/shift-left/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Right shift', '>>', 'https://mariadb.com/kb/en/shift-right/');
+       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT REGEXP', 'NOT REGEXP', 'https://mariadb.com/kb/en/not-regexp/');
 
 INSERT
 INTO `mdb_ontologies` (prefix, uri, uri_pattern, sparql_endpoint, rdf_path)
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/container/ContainerDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/container/ContainerDto.java
index 35bfafdf464d0876e96924b2d98605e41ba14bda..39eb0116527395ca9dcfdf634e44b675fc46b122 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/container/ContainerDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/container/ContainerDto.java
@@ -2,6 +2,7 @@ package at.tuwien.api.container;
 
 import at.tuwien.api.CacheableDto;
 import at.tuwien.api.container.image.ImageDto;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
@@ -35,20 +36,14 @@ public class ContainerDto extends CacheableDto {
     @Schema(example = "air_quality")
     private String internalName;
 
+    @JsonIgnore
     @Schema(example = "data-db")
     private String host;
 
+    @JsonIgnore
     @Schema(example = "3306")
     private Integer port;
 
-    @JsonProperty("ui_host")
-    @Schema(example = "example.com")
-    private String uiHost;
-
-    @JsonProperty("ui_port")
-    @Schema(example = "3306")
-    private Integer uiPort;
-
     @NotNull
     private ImageDto image;
 
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/CreateViewDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/CreateViewDto.java
index 366845d08304881519c80f4984106626bf52a01a..9a9558470f575e07e9baf77b531911a80dac8757 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/CreateViewDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/CreateViewDto.java
@@ -1,5 +1,6 @@
 package at.tuwien.api.database;
 
+import at.tuwien.api.database.query.SubsetDto;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
@@ -23,9 +24,8 @@ public class CreateViewDto {
     @Schema(example = "Air Quality")
     private String name;
 
-    @NotBlank
-    @Schema(example = "SELECT `id` FROM `air_quality`")
-    private String query;
+    @NotNull
+    private SubsetDto query;
 
     @NotNull
     @JsonProperty("is_public")
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/DatabaseDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/DatabaseDto.java
index 5ecca1bebc980e9ba7d436206fc2c9b19e059df6..0c8c85a41c54fa81bcf9a37a15fe0187df4182eb 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/DatabaseDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/DatabaseDto.java
@@ -1,6 +1,7 @@
 package at.tuwien.api.database;
 
 import at.tuwien.api.CacheableDto;
+import at.tuwien.api.container.ContainerBriefDto;
 import at.tuwien.api.container.ContainerDto;
 import at.tuwien.api.database.table.TableDto;
 import at.tuwien.api.identifier.IdentifierDto;
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/ViewDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/ViewDto.java
index 7abd47121591e2ad5611c61dde9b6712df56dbc3..1e54da2978935edcb21d396ae66258e37281f785 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/ViewDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/ViewDto.java
@@ -30,8 +30,8 @@ public class ViewDto extends CacheableDto {
 
     @NotNull
     @JsonProperty("database_id")
-    @Schema(example = "2b5b2b03-fdd0-40d6-afe0-e5d02fd839e4")
-    private UUID vdbid;
+    @Schema(example = "fc29f89c-86a8-4020-9e36-4d954736c6cc")
+    private UUID databaseId;
 
     @NotBlank
     @Schema(example = "Air Quality")
@@ -66,10 +66,6 @@ public class ViewDto extends CacheableDto {
     @Schema(example = "7de03e818900b6ea6d58ad0306d4a741d658c6df3d1964e89ed2395d8c7e7916")
     private String queryHash;
 
-    @ToString.Exclude
-    @EqualsAndHashCode.Exclude
-    private DatabaseDto database;
-
     @NotNull
     private UserBriefDto owner;
 
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..3fe8744661c4308d7403b950a15bfed104d9e5a1
--- /dev/null
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterDto.java
@@ -0,0 +1,39 @@
+package at.tuwien.api.database.query;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.*;
+import lombok.extern.jackson.Jacksonized;
+
+import java.util.UUID;
+
+@Getter
+@Setter
+@Builder
+@EqualsAndHashCode
+@NoArgsConstructor
+@AllArgsConstructor
+@Jacksonized
+@ToString
+public class FilterDto {
+
+    @NotNull
+    @Schema(example = "where")
+    private FilterTypeDto type;
+
+    @NotNull
+    @JsonProperty("column_id")
+    @Schema(example = "14128033-54b5-4818-a489-21b0dded86e2")
+    private UUID columnId;
+
+    @NotNull
+    @JsonProperty("operator_id")
+    @Schema(example = "67c5b54d-2eb0-4f42-8dc1-a504562e9f32")
+    private UUID operatorId;
+
+    @NotNull
+    @Schema(example = "1")
+    private String value;
+
+}
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterTypeDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterTypeDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..eb9c12f7b2a19c85a79de149e356d4e362037daf
--- /dev/null
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/FilterTypeDto.java
@@ -0,0 +1,28 @@
+package at.tuwien.api.database.query;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@Schema
+public enum FilterTypeDto {
+
+    @JsonProperty("where")
+    WHERE("where"),
+
+    @JsonProperty("or")
+    OR("or"),
+
+    @JsonProperty("and")
+    AND("and");
+
+    private String name;
+
+    FilterTypeDto(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return this.name;
+    }
+}
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..bb58ad483145927ee0f12fd60d553123228f488d
--- /dev/null
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderDto.java
@@ -0,0 +1,29 @@
+package at.tuwien.api.database.query;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.*;
+import lombok.extern.jackson.Jacksonized;
+
+import java.util.UUID;
+
+@Getter
+@Setter
+@Builder
+@EqualsAndHashCode
+@NoArgsConstructor
+@AllArgsConstructor
+@Jacksonized
+@ToString
+public class OrderDto {
+
+    @NotNull
+    @JsonProperty("column_id")
+    @Schema(example = "e891ba86-0258-41a6-a8d9-ff58bc10b618")
+    private UUID columnId;
+
+    @Schema(example = "asc")
+    private OrderTypeDto direction;
+
+}
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderTypeDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderTypeDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..ee05a75e47995ef1153a0d8517430cb103cbcc34
--- /dev/null
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/OrderTypeDto.java
@@ -0,0 +1,25 @@
+package at.tuwien.api.database.query;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@Schema
+public enum OrderTypeDto {
+
+    @JsonProperty("asc")
+    ASC("asc"),
+
+    @JsonProperty("desc")
+    DESC("desc");
+
+    private String name;
+
+    OrderTypeDto(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return this.name;
+    }
+}
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/QueryDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/QueryDto.java
index 3b0f17086aaadb9ec5c91b2c0e54f9f207811056..24915a3dd5f4cbe82dd93744d214b2488b99acd5 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/QueryDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/QueryDto.java
@@ -1,5 +1,6 @@
 package at.tuwien.api.database.query;
 
+import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.identifier.IdentifierBriefDto;
 import at.tuwien.api.user.UserBriefDto;
 import com.fasterxml.jackson.annotation.JsonFormat;
@@ -30,7 +31,7 @@ public class QueryDto {
 
     @NotNull
     @JsonProperty("database_id")
-    @Schema(example = "1a6fb0c0-49c3-4a22-a515-35f7a3dd8e62")
+    @Schema(example = "fc29f89c-86a8-4020-9e36-4d954736c6cc")
     private UUID databaseId;
 
     @NotNull
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/SubsetDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/SubsetDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..6e8c238417a7d81d65a08b639fb3ddcd9b1750df
--- /dev/null
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/query/SubsetDto.java
@@ -0,0 +1,35 @@
+package at.tuwien.api.database.query;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.*;
+import lombok.extern.jackson.Jacksonized;
+
+import java.util.List;
+import java.util.UUID;
+
+@Getter
+@Setter
+@Builder
+@EqualsAndHashCode
+@NoArgsConstructor
+@AllArgsConstructor
+@Jacksonized
+@ToString
+public class SubsetDto {
+
+    @NotNull
+    @JsonProperty("table_id")
+    @Schema(example = "f7df2a7d-4ade-4c78-97b0-7c744d0893c7")
+    private UUID tableId;
+
+    @NotNull
+    @Schema(example = "[\"e891ba86-0258-41a6-a8d9-ff58bc10b618\"]")
+    private List<UUID> columns;
+
+    private List<FilterDto> filter;
+
+    private List<OrderDto> order;
+
+}
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/TableDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/TableDto.java
index 3104794394e360ae23ebc82ab29364654b2ee992..3dde7091830b02f226a0526885986c264e93704d 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/TableDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/TableDto.java
@@ -2,6 +2,7 @@ package at.tuwien.api.database.table;
 
 import at.tuwien.api.CacheableDto;
 import at.tuwien.api.container.ContainerDto;
+import at.tuwien.api.database.DatabaseBriefDto;
 import at.tuwien.api.database.DatabaseDto;
 import at.tuwien.api.database.table.columns.ColumnDto;
 import at.tuwien.api.database.table.constraints.ConstraintsDto;
@@ -36,8 +37,8 @@ public class TableDto extends CacheableDto {
 
     @NotNull
     @JsonProperty("database_id")
-    @Schema(example = "692511b6-5af3-4043-8b9b-626af8756d92")
-    private UUID tdbid;
+    @Schema(example = "fc29f89c-86a8-4020-9e36-4d954736c6cc")
+    private UUID databaseId;
 
     @NotBlank
     @Schema(example = "Air Quality")
@@ -108,10 +109,6 @@ public class TableDto extends CacheableDto {
     @NotNull
     private List<ColumnDto> columns;
 
-    @ToString.Exclude
-    @EqualsAndHashCode.Exclude
-    private DatabaseDto database;
-
     @NotNull
     private ConstraintsDto constraints;
 
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/CreateTableColumnDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/CreateTableColumnDto.java
index ca7f3b8d58a3ee08a342b6df0452719c786b863b..9733f64a163fcede451627fbbe2fc6a9b8df405d 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/CreateTableColumnDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/CreateTableColumnDto.java
@@ -28,7 +28,7 @@ public class CreateTableColumnDto {
     private Long indexLength;
 
     @NotNull
-    @Schema(example = "string")
+    @Schema(example = "varchar")
     private ColumnTypeDto type;
 
     @Schema(example = "255")
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/EnumDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/EnumDto.java
index 1922dc308bc55b2005edbb10a5ada79b2979a3cd..9038648513bb949a99895070cfcedf6e96260bbb 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/EnumDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/EnumDto.java
@@ -18,7 +18,7 @@ import java.util.UUID;
 public class EnumDto {
 
     @NotNull
-    @Schema(example = "1")
+    @Schema(example = "5343bb3d-14d3-4eb7-a86f-b8fc553cb315")
     private UUID id;
 
     @NotNull
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/SetDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/SetDto.java
index 763968e8f5eba57db1d309ab1f3ee7627f1c921a..6986212592d56a16633fc41b0b7ce4b28257bc97 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/SetDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/columns/SetDto.java
@@ -18,7 +18,7 @@ import java.util.UUID;
 public class SetDto {
 
     @NotNull
-    @Schema(example = "1")
+    @Schema(example = "7eb4eded-bacc-4a91-84db-a9ae6ddafda7")
     private UUID id;
 
     @NotNull
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/constraints/foreign/CreateForeignKeyDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/constraints/foreign/CreateForeignKeyDto.java
index 31e43b0c6a4377b59d096f5acf5b6bf43067a295..5e1d0a9f86c8055c69d5c4c03ac8f7c06aec6206 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/constraints/foreign/CreateForeignKeyDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/database/table/constraints/foreign/CreateForeignKeyDto.java
@@ -1,6 +1,7 @@
 package at.tuwien.api.database.table.constraints.foreign;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotNull;
 import lombok.*;
 import lombok.extern.jackson.Jacksonized;
@@ -17,19 +18,24 @@ import java.util.List;
 public class CreateForeignKeyDto {
 
     @NotNull
+    @Schema(example = "[\"id\"]")
     private List<String> columns;
 
     @NotNull
+    @Schema(example = "sensor")
     @JsonProperty("referenced_table")
     private String referencedTable;
 
     @NotNull
+    @Schema(example = "[\"other_id\"]")
     @JsonProperty("referenced_columns")
     private List<String> referencedColumns;
 
+    @Schema(example = "cascade")
     @JsonProperty("on_update")
     private ReferenceTypeDto onUpdate;
 
+    @Schema(example = "cascade")
     @JsonProperty("on_delete")
     private ReferenceTypeDto onDelete;
 }
diff --git a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/identifier/IdentifierBriefDto.java b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/identifier/IdentifierBriefDto.java
index 43e32b8ae083ee154f221e0667ad3a2e10706071..0434d1b21fe85c60b0596507e65e1bb7a67b3be9 100644
--- a/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/identifier/IdentifierBriefDto.java
+++ b/dbrepo-metadata-service/api/src/main/java/at/tuwien/api/identifier/IdentifierBriefDto.java
@@ -25,7 +25,7 @@ public class IdentifierBriefDto {
 
     @NotNull
     @JsonProperty("database_id")
-    @Schema(example = "1")
+    @Schema(example = "fc29f89c-86a8-4020-9e36-4d954736c6cc")
     private UUID databaseId;
 
     @JsonProperty("query_id")
diff --git a/dbrepo-metadata-service/entities/src/main/java/at/tuwien/entities/database/View.java b/dbrepo-metadata-service/entities/src/main/java/at/tuwien/entities/database/View.java
index d2443c79850e187d54e401b0c2ebbcf787180d94..8f84a8f066d577e6ba009f6ffbc4ff144d671fc8 100644
--- a/dbrepo-metadata-service/entities/src/main/java/at/tuwien/entities/database/View.java
+++ b/dbrepo-metadata-service/entities/src/main/java/at/tuwien/entities/database/View.java
@@ -25,7 +25,9 @@ import java.util.UUID;
 @NoArgsConstructor
 @EqualsAndHashCode
 @EntityListeners(AuditingEntityListener.class)
-@Table(name = "mdb_view")
+@Table(name = "mdb_view", uniqueConstraints = {
+        @UniqueConstraint(columnNames = {"vdbid", "internalName"})
+})
 @NamedQueries({
         @NamedQuery(name = "View.findAllPublicByDatabaseId", query = "select v from View v where v.database.id = ?1 and v.isPublic = true"),
         @NamedQuery(name = "View.findAllPublicOrMineByDatabaseId", query = "select v from View v where v.database.id = ?1 and (v.isPublic = true or v.ownedBy = ?2)"),
diff --git a/dbrepo-metadata-service/pom.xml b/dbrepo-metadata-service/pom.xml
index d294d8583b08b34fc56c835c08bac25229a6a9b7..dec6e42b20ea0aa7c7c26d5ef3e08ff24f08c9fa 100644
--- a/dbrepo-metadata-service/pom.xml
+++ b/dbrepo-metadata-service/pom.xml
@@ -8,6 +8,11 @@
         <version>3.3.5</version>
     </parent>
 
+    <organization>
+        <name>TU Wien</name>
+        <url>https://www.tuwien.ac.at</url>
+    </organization>
+
     <groupId>at.tuwien</groupId>
     <artifactId>dbrepo-metadata-service</artifactId>
     <name>dbrepo-metadata-service</name>
@@ -60,8 +65,10 @@
         <aws-s3.version>2.25.23</aws-s3.version>
         <jackson.version>2.15.2</jackson.version>
         <minio.version>8.5.7</minio.version>
-        <sonar.coverage.jacoco.xmlReportPaths>./report/target/site/jacoco-aggregate/jacoco.xml
+        <sonar.coverage.jacoco.xmlReportPaths>
+            ./report/target/site/jacoco-aggregate/jacoco.xml
         </sonar.coverage.jacoco.xmlReportPaths>
+        <CodeCacheSize>128m</CodeCacheSize>
     </properties>
 
     <dependencies>
@@ -308,8 +315,25 @@
                         </goals>
                     </execution>
                 </executions>
+            </plugin><!-- Surefire runs all Java tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <!-- Note config is repeated in scalatest config -->
+                <configuration>
+                    <argLine>@{argLine} -ea -Xmx4g -Xss4m -XX:MaxMetaspaceSize=2g -XX:ReservedCodeCacheSize=${CodeCacheSize}
+                    </argLine>
+                </configuration>
             </plugin>
         </plugins>
     </build>
 
+    <licenses>
+        <license>
+            <name>Apache-2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+
 </project>
diff --git a/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/exception/ViewExistsException.java b/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/exception/ViewExistsException.java
new file mode 100644
index 0000000000000000000000000000000000000000..265974db55184f6f770190068c79596b39281b6d
--- /dev/null
+++ b/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/exception/ViewExistsException.java
@@ -0,0 +1,21 @@
+package at.tuwien.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(code = HttpStatus.CONFLICT, reason = "error.view.exists")
+public class ViewExistsException extends Exception {
+
+    public ViewExistsException(String msg) {
+        super(msg);
+    }
+
+    public ViewExistsException(String msg, Throwable thr) {
+        super(msg + ": " + thr.getLocalizedMessage(), thr);
+    }
+
+    public ViewExistsException(Throwable thr) {
+        super(thr);
+    }
+
+}
diff --git a/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/mapper/MetadataMapper.java b/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/mapper/MetadataMapper.java
index 88eef556226f474c49d8aa9d4c3509a96b273f86..2d18ca0c49124539a6b9aa6072396aa247eb8167 100644
--- a/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/mapper/MetadataMapper.java
+++ b/dbrepo-metadata-service/repositories/src/main/java/at/tuwien/mapper/MetadataMapper.java
@@ -563,17 +563,13 @@ public interface MetadataMapper {
                 .name(data.getName())
                 .internalName(data.getInternalName())
                 .owner(userToUserBriefDto(data.getOwner()))
-                .tdbid(data.getTdbid())
+                .databaseId(data.getTdbid())
                 .isPublic(data.getIsPublic())
                 .isSchemaPublic(data.getIsSchemaPublic())
                 .isVersioned(true)
                 .description(data.getDescription())
                 .identifiers(new LinkedList<>())
                 .columns(new LinkedList<>())
-                .database(databaseToDatabaseDto(data.getDatabase()
-                        .toBuilder()
-                        .tables(null)
-                        .build()))
                 .constraints(constraintsToConstraintsDto(data.getConstraints()))
                 .build();
         if (data.getIdentifiers() != null) {
@@ -600,15 +596,15 @@ public interface MetadataMapper {
             table.getConstraints()
                     .getForeignKeys()
                     .forEach(fk -> {
-                        fk.getTable().setDatabaseId(table.getTdbid());
-                        fk.getReferencedTable().setDatabaseId(table.getTdbid());
+                        fk.getTable().setDatabaseId(table.getDatabaseId());
+                        fk.getReferencedTable().setDatabaseId(table.getDatabaseId());
                         fk.getReferences()
                                 .forEach(ref -> {
                                     ref.setForeignKey(foreignKeyDtoToForeignKeyBriefDto(fk));
                                     ref.getColumn().setTableId(table.getId());
-                                    ref.getColumn().setDatabaseId(table.getTdbid());
+                                    ref.getColumn().setDatabaseId(table.getDatabaseId());
                                     ref.getReferencedColumn().setTableId(fk.getReferencedTable().getId());
-                                    ref.getReferencedColumn().setDatabaseId(table.getTdbid());
+                                    ref.getReferencedColumn().setDatabaseId(table.getDatabaseId());
                                 });
                     });
             table.getConstraints()
@@ -823,9 +819,7 @@ public interface MetadataMapper {
     }
 
     @Mappings({
-            @Mapping(target = "vdbid", source = "database.id"),
-            @Mapping(target = "database.views", ignore = true),
-            @Mapping(target = "database.tables", ignore = true)
+            @Mapping(target = "databaseId", source = "database.id")
     })
     ViewDto viewToViewDto(View data);
 
@@ -834,6 +828,9 @@ public interface MetadataMapper {
     })
     ViewColumnDto viewColumnToViewColumnDto(ViewColumn data);
 
+    @Mappings({
+            @Mapping(target = "vdbid", source = "database.id")
+    })
     ViewBriefDto viewToViewBriefDto(View data);
 
     @Mappings({
diff --git a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
index de510dd9702e0051db2a103342c2d18a7153d2be..d711f11a0480425dad5b760ee848a38e0793eaa6 100644
--- a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
+++ b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/DatabaseEndpoint.java
@@ -520,14 +520,14 @@ public class DatabaseEndpoint extends AbstractEndpoint {
                     .size();
             database.setTables(database.getTables()
                     .stream()
-                    .filter(t -> t.getIsPublic() || t.getIsSchemaPublic() || optional.isPresent())
+                    .filter(t -> t.getIsPublic() || t.getIsSchemaPublic() || optional.isPresent() || isSystem(principal))
                     .toList());
             log.trace("filtered database tables from {} to {}", tables, database.getTables().size());
             final int views = database.getViews()
                     .size();
             database.setViews(database.getViews()
                     .stream()
-                    .filter(v -> v.getIsPublic() || v.getIsSchemaPublic() || optional.isPresent())
+                    .filter(v -> v.getIsPublic() || v.getIsSchemaPublic() || optional.isPresent() || isSystem(principal))
                     .toList());
             log.trace("filtered database views from {} to {}", views, database.getViews().size());
             if (!isSystem(principal) && !database.getOwner().getId().equals(getId(principal))) {
diff --git a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
index 2f3d38b64cac96b80f2b250973c2f7dfd65c4990..f04f66eb8e5c3d7527e84abcb0ef1861cb02dc42 100644
--- a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
+++ b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/TableEndpoint.java
@@ -17,7 +17,6 @@ import at.tuwien.service.*;
 import at.tuwien.validation.EndpointValidator;
 import io.micrometer.observation.annotation.Observed;
 import io.swagger.v3.oas.annotations.Operation;
-import io.swagger.v3.oas.annotations.headers.Header;
 import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -28,7 +27,6 @@ import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotNull;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -442,9 +440,6 @@ public class TableEndpoint extends AbstractEndpoint {
     @ApiResponses(value = {
             @ApiResponse(responseCode = "200",
                     description = "Find table successfully",
-                    headers = {@Header(name = "X-Username", description = "The authentication username", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-Password", description = "The authentication password", schema = @Schema(implementation = String.class)),
-                            @Header(name = "Access-Control-Expose-Headers", description = "Expose custom headers", schema = @Schema(implementation = String.class))},
                     content = {@Content(
                             mediaType = "application/json",
                             schema = @Schema(implementation = TableDto.class))}),
@@ -486,17 +481,7 @@ public class TableEndpoint extends AbstractEndpoint {
             table.setConstraints(null);
         }
         final TableDto dto = metadataMapper.tableToTableDto(table);
-        final HttpHeaders headers = new HttpHeaders();
-        if (isSystem(principal)) {
-            headers.set("X-Username", table.getDatabase().getContainer().getPrivilegedUsername());
-            headers.set("X-Password", table.getDatabase().getContainer().getPrivilegedPassword());
-            headers.set("X-Jdbc-Method", table.getDatabase().getContainer().getImage().getJdbcMethod());
-            headers.set("Access-Control-Expose-Headers", "X-Username X-Password X-Jdbc-Method");
-        } else {
-            removeInternalData(dto.getDatabase().getContainer());
-        }
         return ResponseEntity.ok()
-                .headers(headers)
                 .body(dto);
     }
 
diff --git a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
index 2214343ee67ae5e8c0d1acca7857e08cb08f275b..432b84d50f125895287516e0e628110e207f1a83 100644
--- a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
+++ b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/endpoints/ViewEndpoint.java
@@ -1,7 +1,7 @@
 package at.tuwien.endpoints;
 
-import at.tuwien.api.database.ViewBriefDto;
 import at.tuwien.api.database.CreateViewDto;
+import at.tuwien.api.database.ViewBriefDto;
 import at.tuwien.api.database.ViewDto;
 import at.tuwien.api.database.ViewUpdateDto;
 import at.tuwien.api.error.ApiErrorDto;
@@ -15,7 +15,6 @@ import at.tuwien.service.UserService;
 import at.tuwien.service.ViewService;
 import io.micrometer.observation.annotation.Observed;
 import io.swagger.v3.oas.annotations.Operation;
-import io.swagger.v3.oas.annotations.headers.Header;
 import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -26,7 +25,6 @@ import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotNull;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -121,6 +119,11 @@ public class ViewEndpoint extends AbstractEndpoint {
                     content = {@Content(
                             mediaType = "application/json",
                             schema = @Schema(implementation = ApiErrorDto.class))}),
+            @ApiResponse(responseCode = "409",
+                    description = "View exists with name",
+                    content = {@Content(
+                            mediaType = "application/json",
+                            schema = @Schema(implementation = ApiErrorDto.class))}),
             @ApiResponse(responseCode = "423",
                     description = "Create view resulted in an invalid query statement",
                     content = {@Content(
@@ -141,13 +144,18 @@ public class ViewEndpoint extends AbstractEndpoint {
                                                @NotNull @Valid @RequestBody CreateViewDto data,
                                                @NotNull Principal principal) throws NotAllowedException,
             MalformedException, DataServiceException, DataServiceConnectionException, DatabaseNotFoundException,
-            UserNotFoundException, SearchServiceException, SearchServiceConnectionException {
+            UserNotFoundException, SearchServiceException, SearchServiceConnectionException, TableNotFoundException,
+            ImageNotFoundException, ViewExistsException {
         log.debug("endpoint create view, databaseId={}, data={}", databaseId, data);
         final Database database = databaseService.findById(databaseId);
         if (!database.getOwner().getId().equals(getId(principal))) {
             log.error("Failed to create view: not the database owner");
             throw new NotAllowedException("Failed to create view: not the database owner");
         }
+        if (database.getViews().stream().anyMatch(v -> v.getInternalName().equals(metadataMapper.nameToInternalName(data.getName())))) {
+            log.error("Failed to create view: name exists");
+            throw new ViewExistsException("Failed to create view: name exists");
+        }
         log.trace("create view for database {}", database);
         return ResponseEntity.status(HttpStatus.CREATED)
                 .body(metadataMapper.viewToViewBriefDto(
@@ -163,14 +171,6 @@ public class ViewEndpoint extends AbstractEndpoint {
     @ApiResponses(value = {
             @ApiResponse(responseCode = "200",
                     description = "Find view successfully",
-                    headers = {@Header(name = "X-Username", description = "The authentication username", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-Password", description = "The authentication password", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-Host", description = "The database hostname", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-Port", description = "The database port number", schema = @Schema(implementation = Integer.class)),
-                            @Header(name = "X-Type", description = "The JDBC connection type", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-Database", description = "The database internal name", schema = @Schema(implementation = String.class)),
-                            @Header(name = "X-View", description = "The view internal name", schema = @Schema(implementation = String.class)),
-                            @Header(name = "Access-Control-Expose-Headers", description = "Expose custom headers", schema = @Schema(implementation = String.class))},
                     content = {@Content(
                             mediaType = "application/json",
                             schema = @Schema(implementation = ViewDto.class))}),
@@ -192,25 +192,8 @@ public class ViewEndpoint extends AbstractEndpoint {
         log.debug("endpoint find view, databaseId={}, viewId={}", databaseId, viewId);
         final Database database = databaseService.findById(databaseId);
         final View view = viewService.findById(database, viewId);
-        final HttpHeaders headers = new HttpHeaders();
-        if (isSystem(principal)) {
-            headers.set("X-Username", database.getContainer().getPrivilegedUsername());
-            headers.set("X-Password", database.getContainer().getPrivilegedPassword());
-            headers.set("X-Host", database.getContainer().getHost());
-            headers.set("X-Port", "" + database.getContainer().getPort());
-            headers.set("X-Type", database.getContainer().getImage().getJdbcMethod());
-            headers.set("X-Database", database.getInternalName());
-            headers.set("X-View", view.getInternalName());
-            headers.set("X-Jdbc-Method", view.getDatabase().getContainer().getImage().getJdbcMethod());
-            headers.set("Access-Control-Expose-Headers", "X-Username X-Password X-Host X-Port X-Type X-Database X-View X-Jdbc-Method");
-        }
-        final ViewDto dto = metadataMapper.viewToViewDto(view);
-        if (!isSystem(principal)) {
-            removeInternalData(dto.getDatabase().getContainer());
-        }
         return ResponseEntity.status(HttpStatus.OK)
-                .headers(headers)
-                .body(dto);
+                .body(metadataMapper.viewToViewDto(view));
     }
 
     @DeleteMapping("/{viewId}")
diff --git a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
index aca2f9f356840af623ac0443fa6392092a5f865a..eadce489d9e2cb689012e5f9f4eaafeed0093566 100644
--- a/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
+++ b/dbrepo-metadata-service/rest-service/src/main/java/at/tuwien/handlers/ApiExceptionHandler.java
@@ -473,6 +473,13 @@ public class ApiExceptionHandler extends ResponseEntityExceptionHandler {
         return generic_handle(e.getClass(), e.getLocalizedMessage());
     }
 
+    @Hidden
+    @ResponseStatus(code = HttpStatus.CONFLICT)
+    @ExceptionHandler(ViewExistsException.class)
+    public ResponseEntity<ApiErrorDto> handle(ViewExistsException e) {
+        return generic_handle(e.getClass(), e.getLocalizedMessage());
+    }
+
     @Hidden
     @ResponseStatus(code = HttpStatus.BAD_REQUEST)
     @ExceptionHandler(ViewMalformedException.class)
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/DatabaseEndpointUnitTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/DatabaseEndpointUnitTest.java
index 9978574d156702eabe253c5b785cc56002aa0074..28117400a6d39331bfe23d689e294d077d815b53 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/DatabaseEndpointUnitTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/DatabaseEndpointUnitTest.java
@@ -563,8 +563,8 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithAnonymousUser
-    public void findById_anonymousPublicSchemaNoAccess_succeeds() throws UserNotFoundException, NotAllowedException,
-            DataServiceException, DatabaseNotFoundException, ExchangeNotFoundException, DataServiceConnectionException {
+    public void findById_anonymousPublicSchemaNoAccess_succeeds() throws NotAllowedException,
+            DatabaseNotFoundException {
 
         /* test */
         final DatabaseDto database = findById_generic(DATABASE_2_ID, DATABASE_2, null);
@@ -575,13 +575,12 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_LOCAL_ADMIN_USERNAME, authorities = {"system"})
-    public void findById_privateSchemaNoAccessInternalUser_succeeds() throws UserNotFoundException,
-            NotAllowedException, DataServiceException, DatabaseNotFoundException, ExchangeNotFoundException,
-            DataServiceConnectionException {
+    public void findById_privateSchemaNoAccessInternalUser_succeeds() throws NotAllowedException,
+            DatabaseNotFoundException {
 
         /* test */
         final DatabaseDto database = findById_generic(DATABASE_3_ID, DATABASE_3, USER_LOCAL_ADMIN_PRINCIPAL);
-        assertEquals(0, database.getTables().size());
+        assertEquals(1, database.getTables().size());
         assertEquals(1, database.getViews().size());
         assertNotEquals(0, database.getAccesses().size());
     }
@@ -608,8 +607,7 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_1_USERNAME)
-    public void findById_ownerSeesAccessRights_succeeds() throws DataServiceException, DataServiceConnectionException,
-            DatabaseNotFoundException, ExchangeNotFoundException, UserNotFoundException, NotAllowedException {
+    public void findById_ownerSeesAccessRights_succeeds() throws DatabaseNotFoundException, NotAllowedException {
 
         /* mock */
         when(accessService.list(DATABASE_1))
@@ -624,8 +622,7 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_2_USERNAME)
-    public void findById_hiddenAccessRights_succeeds() throws DataServiceException, DataServiceConnectionException,
-            DatabaseNotFoundException, ExchangeNotFoundException, UserNotFoundException, NotAllowedException {
+    public void findById_hiddenAccessRights_succeeds() throws DatabaseNotFoundException, NotAllowedException {
 
         /* mock */
         when(accessService.list(DATABASE_1))
@@ -640,8 +637,7 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_1_USERNAME)
-    public void findById_hiddenAccessRightsSeesOwn_succeeds() throws DataServiceException, DataServiceConnectionException,
-            DatabaseNotFoundException, ExchangeNotFoundException, UserNotFoundException, NotAllowedException {
+    public void findById_hiddenAccessRightsSeesOwn_succeeds() throws DatabaseNotFoundException, NotAllowedException {
 
         /* mock */
         when(accessService.list(DATABASE_1))
@@ -775,8 +771,7 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
     }
 
     public DatabaseDto findById_generic(UUID databaseId, Database database, Principal principal)
-            throws DataServiceConnectionException, DatabaseNotFoundException, ExchangeNotFoundException,
-            DataServiceException, UserNotFoundException, NotAllowedException {
+            throws DatabaseNotFoundException, NotAllowedException {
 
         /* mock */
         if (database != null) {
@@ -796,7 +791,8 @@ public class DatabaseEndpointUnitTest extends AbstractUnitTest {
         return body;
     }
 
-    public ResponseEntity<byte[]> findPreviewImage_generic(UUID databaseId, Database database) throws DatabaseNotFoundException {
+    public ResponseEntity<byte[]> findPreviewImage_generic(UUID databaseId, Database database)
+            throws DatabaseNotFoundException {
 
         /* mock */
         if (database != null) {
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/TableEndpointUnitTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/TableEndpointUnitTest.java
index 092b8c563ddf2ccee2910d140638ca3ad087a6ac..fa1339d30aaaada4bdd32787892e218418c06b3d 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/TableEndpointUnitTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/TableEndpointUnitTest.java
@@ -524,22 +524,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithAnonymousUser
-    public void findById_publicDatabasePrivateDataPrivateSchemaAnonymous_succeeds() throws UserNotFoundException,
-            TableNotFoundException, NotAllowedException, DataServiceException, DatabaseNotFoundException,
-            AccessNotFoundException, QueueNotFoundException, DataServiceConnectionException {
-
-        /* test */
-        final ResponseEntity<TableDto> response = generic_findById(DATABASE_3_ID, DATABASE_3, TABLE_8_ID, TABLE_8, null, null, null);
-        final TableDto body = response.getBody();
-        assertNull(body.getConstraints());
-        assertEquals(List.of(), body.getColumns());
-    }
-
-    @Test
-    @WithAnonymousUser
-    public void findById_publicDataPublicSchemaAnonymous_succeeds() throws DataServiceException,
-            DataServiceConnectionException, TableNotFoundException, DatabaseNotFoundException, AccessNotFoundException,
-            QueueNotFoundException, UserNotFoundException, NotAllowedException {
+    public void findById_publicDataPublicSchemaAnonymous_succeeds() throws UserNotFoundException,
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         generic_findById(DATABASE_4_ID, DATABASE_4, TABLE_9_ID, TABLE_9, null, null, null);
@@ -567,9 +553,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = "find-table")
-    public void findById_publicHasRole_succeeds() throws DataServiceException, DataServiceConnectionException,
-            TableNotFoundException, DatabaseNotFoundException, AccessNotFoundException, QueueNotFoundException,
-            UserNotFoundException, NotAllowedException {
+    public void findById_publicHasRole_succeeds() throws UserNotFoundException,
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         final ResponseEntity<TableDto> response = generic_findById(DATABASE_3_ID, DATABASE_3, TABLE_8_ID, TABLE_8, USER_1_PRINCIPAL, USER_1, DATABASE_1_USER_1_READ_ACCESS);
@@ -580,9 +565,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_4_USERNAME)
-    public void findById_publicNoRole_succeeds() throws DataServiceException, DataServiceConnectionException,
-            TableNotFoundException, DatabaseNotFoundException, AccessNotFoundException, QueueNotFoundException,
-            UserNotFoundException, NotAllowedException {
+    public void findById_publicNoRole_succeeds() throws UserNotFoundException,
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         generic_findById(DATABASE_3_ID, DATABASE_3, TABLE_8_ID, TABLE_8, USER_1_PRINCIPAL, USER_1, null);
@@ -633,7 +617,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
-            analyseTableColumn_generic(DATABASE_1_ID, DATABASE_1, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), null);
+            analyseTableColumn_generic(DATABASE_1_ID, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), null);
         });
     }
 
@@ -643,7 +627,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(org.springframework.security.access.AccessDeniedException.class, () -> {
-            analyseTableColumn_generic(DATABASE_1_ID, DATABASE_1, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), USER_4_PRINCIPAL);
+            analyseTableColumn_generic(DATABASE_1_ID, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), USER_4_PRINCIPAL);
         });
     }
 
@@ -653,7 +637,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
             DatabaseNotFoundException {
 
         /* test */
-        analyseTableColumn_generic(DATABASE_1_ID, DATABASE_1, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), USER_1_PRINCIPAL);
+        analyseTableColumn_generic(DATABASE_1_ID, TABLE_1_ID, TABLE_1_COLUMNS.get(0).getId(), TABLE_1_COLUMNS.get(0), USER_1_PRINCIPAL);
     }
 
     @Test
@@ -935,8 +919,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithAnonymousUser
     public void findById_privateDatabasePrivateDataPublicSchemaAnonymous_fails() throws UserNotFoundException,
-            TableNotFoundException, NotAllowedException, DataServiceException, DatabaseNotFoundException,
-            AccessNotFoundException, QueueNotFoundException, DataServiceConnectionException {
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         generic_findById(DATABASE_1_ID, DATABASE_1, TABLE_2_ID, TABLE_2, null, null, null);
@@ -944,19 +927,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_4_USERNAME)
-    public void findById_privateSchemaNotOwnerNoAccess_fails() {
-
-        /* test */
-        assertThrows(NotAllowedException.class, () -> {
-            generic_findById(DATABASE_3_ID, DATABASE_3, TABLE_8_ID, TABLE_8, USER_4_PRINCIPAL, USER_4, null);
-        });
-    }
-
-    @Test
-    @WithMockUser(username = USER_4_USERNAME)
-    public void findById_publicSchemaNotOwnerNoAccess_succeeds() throws UserNotFoundException, TableNotFoundException,
-            NotAllowedException, DataServiceException, DatabaseNotFoundException, AccessNotFoundException,
-            QueueNotFoundException, DataServiceConnectionException {
+    public void findById_publicSchemaNotOwnerNoAccess_succeeds() throws UserNotFoundException,
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         final ResponseEntity<TableDto> response = generic_findById(DATABASE_1_ID, DATABASE_1, TABLE_2_ID, TABLE_2, USER_4_PRINCIPAL, USER_4, null);
@@ -987,9 +959,8 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
 
     @Test
     @WithMockUser(username = USER_1_USERNAME, authorities = "find-table")
-    public void findById_privateHasRole_succeeds() throws DataServiceException, DataServiceConnectionException,
-            TableNotFoundException, DatabaseNotFoundException, AccessNotFoundException, QueueNotFoundException,
-            UserNotFoundException, NotAllowedException {
+    public void findById_privateHasRole_succeeds() throws UserNotFoundException,
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
         /* test */
         final ResponseEntity<TableDto> response = generic_findById(DATABASE_1_ID, DATABASE_1, TABLE_1_ID, TABLE_1,
                 USER_1_PRINCIPAL, USER_1, DATABASE_1_USER_1_READ_ACCESS);
@@ -1001,8 +972,7 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
     @Test
     @WithMockUser(username = USER_4_USERNAME)
     public void findById_privateDatabasePrivateDataPrivateSchemaNoRole_succeeds() throws UserNotFoundException,
-            TableNotFoundException, NotAllowedException, DataServiceException, DatabaseNotFoundException,
-            AccessNotFoundException, QueueNotFoundException, DataServiceConnectionException {
+            TableNotFoundException, NotAllowedException, DatabaseNotFoundException, AccessNotFoundException {
 
         /* test */
         generic_findById(DATABASE_1_ID, DATABASE_1, TABLE_1_ID, TABLE_1, USER_4_PRINCIPAL, USER_4, DATABASE_1_USER_4_READ_ACCESS);
@@ -1149,9 +1119,9 @@ public class TableEndpointUnitTest extends AbstractUnitTest {
         assertNotNull(body);
     }
 
-    public void analyseTableColumn_generic(UUID databaseId, Database database, UUID tableId, UUID columnId,
-                                           TableColumn tableColumn, Principal principal)
-            throws MalformedException, TableNotFoundException, DatabaseNotFoundException {
+    public void analyseTableColumn_generic(UUID databaseId, UUID tableId, UUID columnId, TableColumn tableColumn,
+                                           Principal principal) throws MalformedException, TableNotFoundException,
+            DatabaseNotFoundException {
 
         /* mock */
         when(entityService.suggestByColumn(tableColumn))
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/ViewEndpointUnitTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/ViewEndpointUnitTest.java
index 1fa3d599206b7c25f31b383be3efba6d8f4bdef8..ac5a8ef524fe8c4bc40c47e7b8ba0325508a7cc5 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/ViewEndpointUnitTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/endpoints/ViewEndpointUnitTest.java
@@ -103,7 +103,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(AccessDeniedException.class, () -> {
-            create_generic(DATABASE_3_ID, DATABASE_3, null, null, null, null);
+            create_generic(DATABASE_3_ID, DATABASE_3, "View", null, null, null, null);
         });
     }
 
@@ -113,7 +113,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
-            create_generic(DATABASE_3_ID, DATABASE_3, USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
+            create_generic(DATABASE_3_ID, DATABASE_3, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
         });
     }
 
@@ -123,7 +123,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
-            create_generic(DATABASE_3_ID, DATABASE_3, USER_2_PRINCIPAL, USER_2_ID, USER_2, DATABASE_2_USER_1_READ_ACCESS);
+            create_generic(DATABASE_3_ID, DATABASE_3, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, DATABASE_2_USER_1_READ_ACCESS);
         });
     }
 
@@ -133,7 +133,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(AccessDeniedException.class, () -> {
-            create_generic(DATABASE_3_ID, DATABASE_3, USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
+            create_generic(DATABASE_3_ID, DATABASE_3, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
         });
     }
 
@@ -141,10 +141,21 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
     @WithMockUser(username = USER_1_USERNAME, authorities = {"create-database-view"})
     public void create_succeeds() throws UserNotFoundException, SearchServiceException, MalformedException,
             NotAllowedException, DataServiceException, DatabaseNotFoundException, AccessNotFoundException,
-            SearchServiceConnectionException, DataServiceConnectionException {
+            SearchServiceConnectionException, DataServiceConnectionException, TableNotFoundException,
+            ImageNotFoundException, ViewExistsException {
 
         /* test */
-        create_generic(DATABASE_1_ID, DATABASE_1, USER_1_PRINCIPAL, USER_1_ID, USER_1, DATABASE_1_USER_1_WRITE_ALL_ACCESS);
+        create_generic(DATABASE_1_ID, DATABASE_1, "View", USER_1_PRINCIPAL, USER_1_ID, USER_1, DATABASE_1_USER_1_WRITE_ALL_ACCESS);
+    }
+
+    @Test
+    @WithMockUser(username = USER_1_USERNAME, authorities = {"create-database-view"})
+    public void create_exists_fails() {
+
+        /* test */
+        assertThrows(ViewExistsException.class, () -> {
+            create_generic(DATABASE_1_ID, DATABASE_1, VIEW_1_NAME, USER_1_PRINCIPAL, USER_1_ID, USER_1, DATABASE_1_USER_1_WRITE_ALL_ACCESS);
+        });
     }
 
     @Test
@@ -174,26 +185,6 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
         find_generic(DATABASE_3_ID, DATABASE_3, USER_2_PRINCIPAL, USER_2_ID, USER_2, DATABASE_2_USER_1_READ_ACCESS);
     }
 
-    @Test
-    @WithMockUser(username = USER_2_USERNAME)
-    public void find_publicSystem_succeeds() throws UserNotFoundException, DatabaseNotFoundException,
-            AccessNotFoundException, ViewNotFoundException {
-
-        /* test */
-        final ResponseEntity<ViewDto> response = find_generic(DATABASE_3_ID, DATABASE_3, USER_LOCAL_ADMIN_PRINCIPAL,
-                USER_LOCAL_ADMIN_ID, null, null);
-        final HttpHeaders headers = response.getHeaders();
-        assertEquals(List.of(CONTAINER_1_PRIVILEGED_USERNAME), headers.get("X-Username"));
-        assertEquals(List.of(CONTAINER_1_PRIVILEGED_PASSWORD), headers.get("X-Password"));
-        assertEquals(List.of(CONTAINER_1_HOST), headers.get("X-Host"));
-        assertEquals(List.of("" + CONTAINER_1_PORT), headers.get("X-Port"));
-        assertEquals(List.of(IMAGE_1_JDBC), headers.get("X-Type"));
-        assertEquals(List.of(DATABASE_3_INTERNALNAME), headers.get("X-Database"));
-        assertEquals(List.of(VIEW_5_INTERNAL_NAME), headers.get("X-View"));
-        assertEquals(List.of(IMAGE_1_JDBC), headers.get("X-Jdbc-Method"));
-        assertEquals(List.of("X-Username X-Password X-Host X-Port X-Type X-Database X-View X-Jdbc-Method"), headers.get("Access-Control-Expose-Headers"));
-    }
-
     @Test
     @WithMockUser(username = USER_2_USERNAME)
     public void find_publicHasRoleHasAccess_succeeds() throws UserNotFoundException, DatabaseNotFoundException,
@@ -289,7 +280,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(AccessDeniedException.class, () -> {
-            create_generic(DATABASE_1_ID, DATABASE_1, null, null, null, null);
+            create_generic(DATABASE_1_ID, DATABASE_1, "View", null, null, null, null);
         });
     }
 
@@ -299,7 +290,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
-            create_generic(DATABASE_1_ID, DATABASE_1, USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
+            create_generic(DATABASE_1_ID, DATABASE_1, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
         });
     }
 
@@ -309,7 +300,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(NotAllowedException.class, () -> {
-            create_generic(DATABASE_1_ID, DATABASE_1, USER_2_PRINCIPAL, USER_2_ID, USER_2, DATABASE_2_USER_1_READ_ACCESS);
+            create_generic(DATABASE_1_ID, DATABASE_1, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, DATABASE_2_USER_1_READ_ACCESS);
         });
     }
 
@@ -319,7 +310,7 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
 
         /* test */
         assertThrows(AccessDeniedException.class, () -> {
-            create_generic(DATABASE_1_ID, DATABASE_1, USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
+            create_generic(DATABASE_1_ID, DATABASE_1, "View", USER_2_PRINCIPAL, USER_2_ID, USER_2, null);
         });
     }
 
@@ -478,13 +469,14 @@ public class ViewEndpointUnitTest extends AbstractUnitTest {
         }
     }
 
-    protected void create_generic(UUID databaseId, Database database, Principal principal, UUID userId, User user,
-                                  DatabaseAccess access) throws MalformedException, DataServiceException,
+    protected void create_generic(UUID databaseId, Database database, String viewName, Principal principal, UUID userId,
+                                  User user, DatabaseAccess access) throws MalformedException, DataServiceException,
             DataServiceConnectionException, NotAllowedException, UserNotFoundException, DatabaseNotFoundException,
-            AccessNotFoundException, SearchServiceException, SearchServiceConnectionException {
+            AccessNotFoundException, SearchServiceException, SearchServiceConnectionException, TableNotFoundException,
+            ImageNotFoundException, ViewExistsException {
         final CreateViewDto request = CreateViewDto.builder()
-                .name(VIEW_1_NAME)
-                .query(VIEW_1_QUERY)
+                .name(viewName)
+                .query(VIEW_1_SUBSET_DTO)
                 .isPublic(VIEW_1_PUBLIC)
                 .build();
 
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/mvc/AuthenticationPrivilegedIntegrationMvcTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/mvc/AuthenticationPrivilegedIntegrationMvcTest.java
index e47229bd0ae17c3b56a46ed60002e5f2226ae204..91194375d0b6c80af8a49cd2330929e7bc29c2e6 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/mvc/AuthenticationPrivilegedIntegrationMvcTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/mvc/AuthenticationPrivilegedIntegrationMvcTest.java
@@ -100,10 +100,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/database/" + DATABASE_1_ID).with(httpBasic(USER_1_USERNAME, USER_1_PASSWORD)))
                 .andDo(print())
-                .andExpect(header().doesNotExist("X-Username"))
-                .andExpect(header().doesNotExist("X-Password"))
-                .andExpect(header().doesNotExist("X-Jdbc-Method"))
-                .andExpect(header().doesNotExist("Access-Control-Expose-Headers"))
                 .andExpect(status().isOk());
     }
 
@@ -151,10 +147,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/database/" + DATABASE_1_ID + "/table/" + TABLE_1_ID).header("Authorization", "Bearer " + jwt.getAccessToken()))
                 .andDo(print())
-                .andExpect(header().string("X-Username", CONTAINER_1_PRIVILEGED_USERNAME))
-                .andExpect(header().string("X-Password", CONTAINER_1_PRIVILEGED_PASSWORD))
-                .andExpect(header().string("X-Jdbc-Method", IMAGE_1_JDBC))
-                .andExpect(header().string("Access-Control-Expose-Headers", "X-Username X-Password X-Jdbc-Method"))
                 .andExpect(status().isOk());
     }
 
@@ -167,10 +159,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/database/" + DATABASE_1_ID + "/table/" + TABLE_1_ID).with(httpBasic(USER_1_USERNAME, USER_1_PASSWORD)))
                 .andDo(print())
-                .andExpect(header().doesNotExist("X-Username"))
-                .andExpect(header().doesNotExist("X-Password"))
-                .andExpect(header().doesNotExist("X-Jdbc-Method"))
-                .andExpect(header().doesNotExist("Access-Control-Expose-Headers"))
                 .andExpect(status().isOk());
     }
 
@@ -183,10 +171,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/database/" + DATABASE_1_ID + "/table/" + TABLE_1_ID).with(httpBasic(USER_LOCAL_ADMIN_USERNAME, USER_LOCAL_ADMIN_PASSWORD)))
                 .andDo(print())
-                .andExpect(header().string("X-Username", CONTAINER_1_PRIVILEGED_USERNAME))
-                .andExpect(header().string("X-Password", CONTAINER_1_PRIVILEGED_PASSWORD))
-                .andExpect(header().string("X-Jdbc-Method", IMAGE_1_JDBC))
-                .andExpect(header().string("Access-Control-Expose-Headers", "X-Username X-Password X-Jdbc-Method"))
                 .andExpect(status().isOk());
     }
 
@@ -200,10 +184,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/database/" + DATABASE_1_ID + "/view/" + VIEW_1_ID).with(httpBasic(USER_1_USERNAME, USER_1_PASSWORD)))
                 .andDo(print())
-                .andExpect(header().doesNotExist("X-Username"))
-                .andExpect(header().doesNotExist("X-Password"))
-                .andExpect(header().doesNotExist("X-Jdbc-Method"))
-                .andExpect(header().doesNotExist("Access-Control-Expose-Headers"))
                 .andExpect(status().isOk());
     }
 
@@ -216,10 +196,6 @@ public class AuthenticationPrivilegedIntegrationMvcTest extends AbstractUnitTest
         /* test */
         this.mockMvc.perform(get("/api/container/" + CONTAINER_1_ID).with(httpBasic(USER_1_USERNAME, USER_1_PASSWORD)))
                 .andDo(print())
-                .andExpect(header().doesNotExist("X-Username"))
-                .andExpect(header().doesNotExist("X-Password"))
-                .andExpect(header().doesNotExist("X-Jdbc-Method"))
-                .andExpect(header().doesNotExist("Access-Control-Expose-Headers"))
                 .andExpect(status().isOk());
     }
 
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/TableServiceUnitTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/TableServiceUnitTest.java
index 8cb5081f6d98b68971f71f2da5538ab72bd772a8..9b0b7fcb1a241e20048fb70f85fb8b209db5f10d 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/TableServiceUnitTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/TableServiceUnitTest.java
@@ -2,14 +2,17 @@ package at.tuwien.service;
 
 import at.tuwien.api.database.table.CreateTableDto;
 import at.tuwien.api.database.table.TableStatisticDto;
-import at.tuwien.api.database.table.columns.CreateTableColumnDto;
+import at.tuwien.api.database.table.TableUpdateDto;
 import at.tuwien.api.database.table.columns.ColumnStatisticDto;
 import at.tuwien.api.database.table.columns.ColumnTypeDto;
+import at.tuwien.api.database.table.columns.CreateTableColumnDto;
 import at.tuwien.api.database.table.columns.concepts.ColumnSemanticsUpdateDto;
 import at.tuwien.api.database.table.constraints.CreateTableConstraintsDto;
 import at.tuwien.api.database.table.constraints.foreign.CreateForeignKeyDto;
 import at.tuwien.entities.database.Database;
 import at.tuwien.entities.database.table.Table;
+import at.tuwien.entities.database.table.columns.ColumnEnum;
+import at.tuwien.entities.database.table.columns.ColumnSet;
 import at.tuwien.entities.database.table.columns.TableColumn;
 import at.tuwien.entities.database.table.columns.TableColumnType;
 import at.tuwien.entities.database.table.constraints.Constraints;
@@ -340,6 +343,54 @@ public class TableServiceUnitTest extends AbstractUnitTest {
         assertEquals(0, constraints.getForeignKeys().size());
     }
 
+    @Test
+    public void createTable_enumsSets_succeeds() throws DataServiceException,
+            DataServiceConnectionException, UserNotFoundException, TableNotFoundException, DatabaseNotFoundException,
+            TableExistsException, SearchServiceException, SearchServiceConnectionException, MalformedException,
+            OntologyNotFoundException, SemanticEntityNotFoundException {
+        final CreateTableDto request = CreateTableDto.builder()
+                .name("New Table")
+                .description("A wonderful table")
+                .columns(new LinkedList<>(List.of(CreateTableColumnDto.builder()
+                                .name("sex")
+                                .type(ColumnTypeDto.ENUM) // <<<
+                                .enums(new LinkedList<>(List.of("male", "female", "other")))
+                                .build(),
+                        CreateTableColumnDto.builder()
+                                .name("status")
+                                .type(ColumnTypeDto.SET) // <<<
+                                .sets(new LinkedList<>(List.of("single", "married", "divorced", "widowed")))
+                                .build())))
+                .constraints(CreateTableConstraintsDto.builder()
+                        .checks(Set.of())
+                        .uniques(List.of())
+                        .foreignKeys(List.of())
+                        .primaryKey(Set.of())
+                        .build())
+                .build();
+
+        /* mock */
+        when(userService.findByUsername(USER_1_USERNAME))
+                .thenReturn(USER_1);
+        doNothing()
+                .when(dataServiceGateway)
+                .createTable(eq(DATABASE_1_ID), any(CreateTableDto.class));
+        when(databaseRepository.save(any(Database.class)))
+                .thenReturn(DATABASE_1);
+        when(searchServiceGateway.update(any(Database.class)))
+                .thenReturn(DATABASE_1_BRIEF_DTO);
+
+        /* test */
+        final Table response = tableService.createTable(DATABASE_1, request, USER_1_PRINCIPAL);
+        final TableColumn column0 = response.getColumns().get(0);
+        assertEquals("sex", column0.getInternalName());
+        assertEquals(TableColumnType.ENUM, column0.getColumnType());
+        assertEquals(List.of("male", "female", "other"), column0.getEnums().stream().map(ColumnEnum::getValue).toList());
+        final TableColumn column1 = response.getColumns().get(1);
+        assertEquals("status", column1.getInternalName());
+        assertEquals(List.of("single", "married", "divorced", "widowed"), column1.getSets().stream().map(ColumnSet::getValue).toList());
+    }
+
     @Test
     public void createTable_dateFormatNotFound_fails() throws DataServiceException, DataServiceConnectionException,
             UserNotFoundException, DatabaseNotFoundException, TableExistsException, SearchServiceException,
@@ -377,6 +428,23 @@ public class TableServiceUnitTest extends AbstractUnitTest {
         });
     }
 
+    @Test
+    public void updateTable_succeeds() throws DataServiceException, DataServiceConnectionException,
+            TableNotFoundException, DatabaseNotFoundException, SearchServiceException,
+            SearchServiceConnectionException {
+
+        /* mock */
+        doNothing()
+                .when(dataServiceGateway)
+                .updateTable(any(UUID.class), any(UUID.class), any(TableUpdateDto.class));
+        when(searchServiceGateway.update(any(Database.class)))
+                .thenReturn(DATABASE_3_BRIEF_DTO);
+
+        /* test */
+        final Table response = tableService.updateTable(TABLE_8, TABLE_8_UPDATE_DTO);
+        assertNotNull(response.getId());
+    }
+
     @Test
     public void create_succeeds() throws MalformedException, DataServiceException, DataServiceConnectionException,
             UserNotFoundException, TableNotFoundException, DatabaseNotFoundException, TableExistsException,
diff --git a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/ViewServiceUnitTest.java b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/ViewServiceUnitTest.java
index 75fab311dd0920eff19002c5976383f6b37e4d94..e99fef1acc76dd0067b9b94233dea06c7c23b30b 100644
--- a/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/ViewServiceUnitTest.java
+++ b/dbrepo-metadata-service/rest-service/src/test/java/at/tuwien/service/ViewServiceUnitTest.java
@@ -50,10 +50,11 @@ public class ViewServiceUnitTest extends AbstractUnitTest {
 
     @Test
     public void create_succeeds() throws MalformedException, DataServiceException, DataServiceConnectionException,
-            DatabaseNotFoundException, SearchServiceException, SearchServiceConnectionException {
+            DatabaseNotFoundException, SearchServiceException, SearchServiceConnectionException, TableNotFoundException,
+            ImageNotFoundException {
         final CreateViewDto request = CreateViewDto.builder()
                 .name(VIEW_1_NAME)
-                .query(VIEW_1_QUERY)
+                .query(VIEW_1_SUBSET_DTO)
                 .isPublic(VIEW_1_PUBLIC)
                 .build();
 
diff --git a/dbrepo-metadata-service/rest-service/src/test/resources/init/weather_at.sql b/dbrepo-metadata-service/rest-service/src/test/resources/init/weather_at.sql
index d02e1945506e5d66bb17dd10582f81814b940ad1..35fd3f88fe38862d9723c41b3fd746d122000a31 100644
--- a/dbrepo-metadata-service/rest-service/src/test/resources/init/weather_at.sql
+++ b/dbrepo-metadata-service/rest-service/src/test/resources/init/weather_at.sql
@@ -1,11 +1,17 @@
 CREATE
-DATABASE weather_at;
+    DATABASE weather_at;
 USE
-weather_at;
+    weather_at;
 
 CREATE TABLE weather_location
 (
     location VARCHAR(255) PRIMARY KEY,
     lat      DOUBLE PRECISION NULL,
     lng      DOUBLE PRECISION NULL
-) WITH SYSTEM VERSIONING COMMENT 'Weather location';
\ No newline at end of file
+) WITH SYSTEM VERSIONING COMMENT 'Weather location';
+
+INSERT INTO weather_location (location, lat, lng)
+VALUES ('Sakhir', 26.0318979, 50.5084668),
+       ('Fiorano', 44.534308, 10.8551698),
+       ('Spielberg', 47.219672, 14.7625382),
+       ('Fuji', 35.3726836, 138.927587);
\ No newline at end of file
diff --git a/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java b/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
index 35dd5fe2b6b4f54b882d20c5685c57847dfc2c1d..b056eafe1749fe10d2e9e3a6fcfbbe80f2d27152 100644
--- a/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
+++ b/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/AuthTokenFilter.java
@@ -13,6 +13,7 @@ import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.context.SecurityContextHolder;
@@ -52,13 +53,13 @@ public class AuthTokenFilter extends OncePerRequestFilter {
         filterChain.doFilter(request, response);
     }
 
-    public UserDetails verifyJwt(String token) throws ServletException {
+    public UserDetails verifyJwt(String token) throws BadCredentialsException {
         final KeyFactory kf;
         try {
             kf = KeyFactory.getInstance("RSA");
         } catch (NoSuchAlgorithmException e) {
             log.error("Failed to find RSA algorithm");
-            throw new ServletException("Failed to find RSA algorithm", e);
+            throw new BadCredentialsException("Failed to find RSA algorithm", e);
         }
         final X509EncodedKeySpec keySpecX509 = new X509EncodedKeySpec(Base64.getDecoder().decode(publicKey));
         final RSAPublicKey pubKey;
@@ -66,7 +67,7 @@ public class AuthTokenFilter extends OncePerRequestFilter {
             pubKey = (RSAPublicKey) kf.generatePublic(keySpecX509);
         } catch (InvalidKeySpecException e) {
             log.error("Provided public key is invalid");
-            throw new ServletException("Provided public key is invalid", e);
+            throw new BadCredentialsException("Provided public key is invalid", e);
         }
         final Algorithm algorithm = Algorithm.RSA256(pubKey, null);
         final Verification verification = JWT.require(algorithm);
diff --git a/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java b/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
index d6535bad491b18744afecbe4fdc4792dfd3e7f33..27a1c271af871b6253540674e9777368afa42e4a 100644
--- a/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
+++ b/dbrepo-metadata-service/services/src/main/java/at/tuwien/auth/BasicAuthenticationProvider.java
@@ -2,11 +2,9 @@ package at.tuwien.auth;
 
 import at.tuwien.api.keycloak.TokenDto;
 import at.tuwien.gateway.KeycloakGateway;
-import jakarta.servlet.ServletException;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.AuthenticationManager;
-import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.AuthenticationException;
@@ -28,13 +26,9 @@ public class BasicAuthenticationProvider implements AuthenticationManager {
 
     @Override
     public Authentication authenticate(Authentication auth) throws AuthenticationException {
-        try {
-            final TokenDto tokenDto = keycloakGateway.obtainUserToken(auth.getName(), auth.getCredentials().toString());
-            final UserDetails userDetails = authTokenFilter.verifyJwt(tokenDto.getAccessToken());
-            log.debug("set basic auth principal: {}", userDetails);
-            return new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
-        } catch (ServletException e) {
-            throw new BadCredentialsException("Failed to authenticate with authentication service", e);
-        }
+        final TokenDto tokenDto = keycloakGateway.obtainUserToken(auth.getName(), auth.getCredentials().toString());
+        final UserDetails userDetails = authTokenFilter.verifyJwt(tokenDto.getAccessToken());
+        log.debug("set basic auth principal: {}", userDetails);
+        return new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
     }
 }
diff --git a/dbrepo-metadata-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java b/dbrepo-metadata-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
index b67ddfdbfd2d8fc51420d814b79bf8fa98c3c3d8..4eb96aeee5b025b996d2bbbaf783a625f25372e2 100644
--- a/dbrepo-metadata-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
+++ b/dbrepo-metadata-service/services/src/main/java/at/tuwien/gateway/impl/KeycloakGatewayImpl.java
@@ -8,6 +8,7 @@ import at.tuwien.exception.UserNotFoundException;
 import at.tuwien.gateway.KeycloakGateway;
 import at.tuwien.mapper.MetadataMapper;
 import jakarta.ws.rs.ForbiddenException;
+import jakarta.ws.rs.NotAuthorizedException;
 import jakarta.ws.rs.NotFoundException;
 import jakarta.ws.rs.core.Response;
 import lombok.extern.log4j.Log4j2;
@@ -17,6 +18,7 @@ import org.keycloak.admin.client.KeycloakBuilder;
 import org.keycloak.admin.client.resource.UserResource;
 import org.keycloak.representations.idm.UserRepresentation;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -38,7 +40,7 @@ public class KeycloakGatewayImpl implements KeycloakGateway {
     }
 
     @Override
-    public TokenDto obtainUserToken(String username, String password) {
+    public TokenDto obtainUserToken(String username, String password) throws BadCredentialsException {
         try (Keycloak userKeycloak = KeycloakBuilder.builder()
                 .serverUrl(keycloakConfig.getKeycloakEndpoint())
                 .realm(keycloakConfig.getRealm())
@@ -50,6 +52,9 @@ public class KeycloakGatewayImpl implements KeycloakGateway {
                 .build()) {
             return metadataMapper.accessTokenResponseToTokenDto(userKeycloak.tokenManager()
                     .getAccessToken());
+        } catch (NotAuthorizedException e) {
+            log.error("Failed to obtain user token: {}", e.getMessage());
+            throw new BadCredentialsException("Failed to obtain user token", e);
         }
     }
 
diff --git a/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/ViewService.java b/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/ViewService.java
index a5769ea9868f1fcc60983733c1994ee7364edff9..54c9dd80bf7ed56040a55f019ca2e6b127a20cf9 100644
--- a/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/ViewService.java
+++ b/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/ViewService.java
@@ -54,7 +54,7 @@ public interface ViewService {
      */
     View create(Database database, User user, CreateViewDto data) throws MalformedException, DataServiceException,
             DataServiceConnectionException, DatabaseNotFoundException, SearchServiceException,
-            SearchServiceConnectionException;
+            SearchServiceConnectionException, TableNotFoundException, ImageNotFoundException;
 
     /**
      * @param database
diff --git a/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/impl/ViewServiceImpl.java b/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/impl/ViewServiceImpl.java
index 7bb45d568e7ed729f7e8a2b379d7055500ccedd3..51c9832e267aac53cb02e09802839ebbdc6b151c 100644
--- a/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/impl/ViewServiceImpl.java
+++ b/dbrepo-metadata-service/services/src/main/java/at/tuwien/service/impl/ViewServiceImpl.java
@@ -90,7 +90,7 @@ public class ViewServiceImpl implements ViewService {
     @Transactional
     public View create(Database database, User creator, CreateViewDto data) throws MalformedException,
             DataServiceException, DataServiceConnectionException, DatabaseNotFoundException, SearchServiceException,
-            SearchServiceConnectionException {
+            SearchServiceConnectionException, TableNotFoundException, ImageNotFoundException {
         /* create in metadata database */
         final View view = View.builder()
                 .database(database)
@@ -99,10 +99,6 @@ public class ViewServiceImpl implements ViewService {
                 .ownedBy(creator.getId())
                 .owner(creator)
                 .identifiers(new LinkedList<>())
-                .query(data.getQuery())
-                .queryHash(Hashing.sha256()
-                        .hashString(data.getQuery(), StandardCharsets.UTF_8)
-                        .toString())
                 .columns(new LinkedList<>())
                 .isInitialView(false)
                 .isSchemaPublic(data.getIsSchemaPublic())
@@ -117,6 +113,10 @@ public class ViewServiceImpl implements ViewService {
                 .toList());
         view.getColumns()
                 .forEach(column -> column.setView(view));
+        view.setQuery(rawView.getQuery());
+        view.setQueryHash(Hashing.sha256()
+                .hashString(rawView.getQuery(), StandardCharsets.UTF_8)
+                .toString());
         database.getViews()
                 .add(view);
         database = databaseRepository.save(database);
diff --git a/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/AbstractUnitTest.java b/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/AbstractUnitTest.java
index f78366fe89f6c631ae29da8020af629f71c528e6..230aada37a32157fbf17cb999edb1cf00cd9a0cd 100644
--- a/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/AbstractUnitTest.java
+++ b/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/AbstractUnitTest.java
@@ -56,18 +56,12 @@ public abstract class AbstractUnitTest extends BaseTest {
         DATABASE_1_DTO.setViews(new LinkedList<>(List.of(VIEW_1_DTO, VIEW_2_DTO, VIEW_3_DTO)));
         TABLE_1_DTO.setColumns(new LinkedList<>(TABLE_1_COLUMNS_DTO));
         TABLE_1_DTO.setConstraints(TABLE_1_CONSTRAINTS_DTO);
-        TABLE_1_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
-        TABLE_1_PRIVILEGED_DTO.setColumns(new LinkedList<>(TABLE_1_COLUMNS_DTO));
-        TABLE_1_PRIVILEGED_DTO.setConstraints(TABLE_1_CONSTRAINTS_DTO);
         TABLE_2.setDatabase(DATABASE_1);
         TABLE_2.setColumns(new LinkedList<>(TABLE_2_COLUMNS));
         TABLE_2_CONSTRAINTS.getForeignKeys().get(0).getReferences().get(0).setForeignKey(TABLE_2_CONSTRAINTS.getForeignKeys().get(0));
         TABLE_2.setConstraints(TABLE_2_CONSTRAINTS);
         TABLE_2_DTO.setColumns(new LinkedList<>(TABLE_2_COLUMNS_DTO));
         TABLE_2_DTO.setConstraints(TABLE_2_CONSTRAINTS_DTO);
-        TABLE_2_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
-        TABLE_2_PRIVILEGED_DTO.setColumns(new LinkedList<>(TABLE_2_COLUMNS_DTO));
-        TABLE_2_PRIVILEGED_DTO.setConstraints(TABLE_2_CONSTRAINTS_DTO);
         TABLE_3.setDatabase(DATABASE_1);
         TABLE_3.setColumns(new LinkedList<>(TABLE_3_COLUMNS));
         TABLE_3.setConstraints(TABLE_3_CONSTRAINTS);
@@ -78,19 +72,13 @@ public abstract class AbstractUnitTest extends BaseTest {
         TABLE_4.setConstraints(TABLE_4_CONSTRAINTS);
         TABLE_4_DTO.setColumns(TABLE_4_COLUMNS_DTO);
         TABLE_4_DTO.setConstraints(TABLE_4_CONSTRAINTS_DTO);
-        TABLE_4_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
-        TABLE_4_PRIVILEGED_DTO.setColumns(new LinkedList<>(TABLE_4_COLUMNS_DTO));
-        TABLE_4_PRIVILEGED_DTO.setConstraints(TABLE_4_CONSTRAINTS_DTO);
         VIEW_1.setDatabase(DATABASE_1);
         VIEW_1.setColumns(new LinkedList<>(VIEW_1_COLUMNS));
         VIEW_1.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_3)));
-        VIEW_1_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
         VIEW_2.setDatabase(DATABASE_1);
         VIEW_2.setColumns(new LinkedList<>(VIEW_2_COLUMNS));
-        VIEW_2_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
         VIEW_3.setDatabase(DATABASE_1);
         VIEW_3.setColumns(new LinkedList<>(VIEW_3_COLUMNS));
-        VIEW_3_PRIVILEGED_DTO.setDatabase(DATABASE_1_PRIVILEGED_DTO);
         IDENTIFIER_1.setDatabase(DATABASE_1);
         IDENTIFIER_2.setDatabase(DATABASE_1);
         IDENTIFIER_3.setDatabase(DATABASE_1);
@@ -98,21 +86,23 @@ public abstract class AbstractUnitTest extends BaseTest {
         /* DATABASE 2 */
         DATABASE_2.setSubsets(new LinkedList<>());
         DATABASE_2.setAccesses(new LinkedList<>(List.of(DATABASE_2_USER_2_WRITE_ALL_ACCESS, DATABASE_2_USER_3_READ_ACCESS)));
-        DATABASE_2_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_2_USER_2_WRITE_ALL_ACCESS_DTO, DATABASE_2_USER_3_READ_ACCESS_DTO)));
-        DATABASE_2_PRIVILEGED_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_2_USER_2_WRITE_ALL_ACCESS_DTO, DATABASE_2_USER_3_READ_ACCESS_DTO)));
         DATABASE_2.setTables(new LinkedList<>(List.of(TABLE_5, TABLE_6, TABLE_7)));
         VIEW_4.setColumns(new LinkedList<>(VIEW_4_COLUMNS));
         DATABASE_2.setViews(new LinkedList<>(List.of(VIEW_4)));
         DATABASE_2.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_5)));
+        DATABASE_2_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_2_USER_2_WRITE_ALL_ACCESS_DTO, DATABASE_2_USER_3_READ_ACCESS_DTO)));
         DATABASE_2_DTO.setTables(new LinkedList<>(List.of(TABLE_5_DTO, TABLE_6_DTO, TABLE_7_DTO)));
         DATABASE_2_DTO.setViews(new LinkedList<>(List.of(VIEW_4_DTO)));
         DATABASE_2_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_5_DTO)));
+        DATABASE_2_PRIVILEGED_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_2_USER_2_WRITE_ALL_ACCESS_DTO, DATABASE_2_USER_3_READ_ACCESS_DTO)));
+        DATABASE_2_PRIVILEGED_DTO.setTables(new LinkedList<>(List.of(TABLE_5_DTO, TABLE_6_DTO, TABLE_7_DTO)));
+        DATABASE_2_PRIVILEGED_DTO.setViews(new LinkedList<>(List.of(VIEW_4_DTO)));
+        DATABASE_2_PRIVILEGED_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_5_DTO)));
         TABLE_5.setDatabase(DATABASE_2);
         TABLE_5.setColumns(new LinkedList<>(TABLE_5_COLUMNS));
         TABLE_5.setConstraints(TABLE_5_CONSTRAINTS);
         TABLE_5_DTO.setColumns(new LinkedList<>(TABLE_5_COLUMNS_DTO));
         TABLE_5_DTO.setConstraints(TABLE_5_CONSTRAINTS_DTO);
-        TABLE_5_PRIVILEGED_DTO.setDatabase(DATABASE_2_PRIVILEGED_DTO);
         TABLE_6.setDatabase(DATABASE_2);
         TABLE_6.setColumns(new LinkedList<>(TABLE_6_COLUMNS));
         TABLE_6.setConstraints(TABLE_6_CONSTRAINTS);
@@ -138,13 +128,14 @@ public abstract class AbstractUnitTest extends BaseTest {
         DATABASE_3_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_6_DTO)));
         DATABASE_3_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_3_USER_1_WRITE_ALL_ACCESS_DTO)));
         DATABASE_3_PRIVILEGED_DTO.setAccesses(new LinkedList<>(List.of(DATABASE_3_USER_1_WRITE_ALL_ACCESS_DTO)));
+        DATABASE_3_PRIVILEGED_DTO.setTables(new LinkedList<>(List.of(TABLE_8_DTO)));
+        DATABASE_3_PRIVILEGED_DTO.setViews(new LinkedList<>(List.of(VIEW_5_DTO)));
+        DATABASE_3_PRIVILEGED_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_6_DTO)));
         TABLE_8.setDatabase(DATABASE_3);
         TABLE_8.setColumns(new LinkedList<>(TABLE_8_COLUMNS));
         TABLE_8.setConstraints(TABLE_8_CONSTRAINTS);
         TABLE_8_DTO.setColumns(new LinkedList<>(TABLE_8_COLUMNS_DTO));
         TABLE_8_DTO.setConstraints(TABLE_8_CONSTRAINTS_DTO);
-        TABLE_8_PRIVILEGED_DTO.setColumns(new LinkedList<>(TABLE_8_COLUMNS_DTO));
-        TABLE_8_PRIVILEGED_DTO.setDatabase(DATABASE_3_PRIVILEGED_DTO);
         VIEW_5.setDatabase(DATABASE_3);
         VIEW_5.setColumns(VIEW_5_COLUMNS);
         VIEW_5_DTO.setColumns(VIEW_5_COLUMNS_DTO);
@@ -155,6 +146,8 @@ public abstract class AbstractUnitTest extends BaseTest {
         DATABASE_4.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_7)));
         DATABASE_4_DTO.setTables(new LinkedList<>(List.of(TABLE_9_DTO)));
         DATABASE_4_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_7_DTO)));
+        DATABASE_4_PRIVILEGED_DTO.setTables(new LinkedList<>(List.of(TABLE_9_DTO)));
+        DATABASE_4_PRIVILEGED_DTO.setIdentifiers(new LinkedList<>(List.of(IDENTIFIER_7_DTO)));
         TABLE_9.setDatabase(DATABASE_4);
         TABLE_9.setColumns(TABLE_9_COLUMNS);
         TABLE_9.setConstraints(TABLE_9_CONSTRAINTS);
diff --git a/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/BaseTest.java b/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/BaseTest.java
index b5da835fa1e471d8e5a0ccda75724ec4d9c7c6c3..35240f97536af3f05099e844135643ea4ea00b3e 100644
--- a/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/BaseTest.java
+++ b/dbrepo-metadata-service/test/src/main/java/at/tuwien/test/BaseTest.java
@@ -10,8 +10,7 @@ import at.tuwien.api.container.ContainerBriefDto;
 import at.tuwien.api.container.ContainerDto;
 import at.tuwien.api.container.image.*;
 import at.tuwien.api.database.*;
-import at.tuwien.api.database.query.QueryBriefDto;
-import at.tuwien.api.database.query.QueryDto;
+import at.tuwien.api.database.query.*;
 import at.tuwien.api.database.table.*;
 import at.tuwien.api.database.table.columns.*;
 import at.tuwien.api.database.table.columns.concepts.*;
@@ -935,7 +934,7 @@ public abstract class BaseTest {
             .version(IMAGE_1_VERSION)
             .isDefault(IMAGE_1_IS_DEFAULT)
             .jdbcMethod(IMAGE_1_JDBC)
-            .operators(null)
+            .operators(null) /* IMAGE_1_OPERATORS_DTO */
             .build();
 
     public static final ImageBriefDto IMAGE_1_BRIEF_DTO = ImageBriefDto.builder()
@@ -950,6 +949,11 @@ public abstract class BaseTest {
     public static final String IMAGE_1_OPERATORS_1_VALUE = "XOR";
     public static final String IMAGE_1_OPERATORS_1_DOCUMENTATION = "https://mariadb.com/kb/en/xor/";
 
+    public static final UUID IMAGE_1_OPERATORS_2_ID = UUID.fromString("42a56348-38bd-4aba-b0f2-ac813d5d2da2");
+    public static final String IMAGE_1_OPERATORS_2_DISPLAY_NAME = "=";
+    public static final String IMAGE_1_OPERATORS_2_VALUE = "=";
+    public static final String IMAGE_1_OPERATORS_2_DOCUMENTATION = "https://mariadb.com/kb/en/equal/";
+
     public static final List<Operator> IMAGE_1_OPERATORS = new LinkedList<>(List.of(
             Operator.builder()
                     .id(IMAGE_1_OPERATORS_1_ID)
@@ -957,6 +961,13 @@ public abstract class BaseTest {
                     .displayName(IMAGE_1_OPERATORS_1_DISPLAY_NAME)
                     .value(IMAGE_1_OPERATORS_1_VALUE)
                     .documentation(IMAGE_1_OPERATORS_1_DOCUMENTATION)
+                    .build(),
+            Operator.builder()
+                    .id(IMAGE_1_OPERATORS_2_ID)
+                    .image(IMAGE_1)
+                    .displayName(IMAGE_1_OPERATORS_2_DISPLAY_NAME)
+                    .value(IMAGE_1_OPERATORS_2_VALUE)
+                    .documentation(IMAGE_1_OPERATORS_2_DOCUMENTATION)
                     .build()));
 
     public static final List<OperatorDto> IMAGE_1_OPERATORS_DTO = new LinkedList<>(List.of(
@@ -965,6 +976,12 @@ public abstract class BaseTest {
                     .displayName(IMAGE_1_OPERATORS_1_DISPLAY_NAME)
                     .value(IMAGE_1_OPERATORS_1_VALUE)
                     .documentation(IMAGE_1_OPERATORS_1_DOCUMENTATION)
+                    .build(),
+            OperatorDto.builder()
+                    .id(IMAGE_1_OPERATORS_2_ID)
+                    .displayName(IMAGE_1_OPERATORS_2_DISPLAY_NAME)
+                    .value(IMAGE_1_OPERATORS_2_VALUE)
+                    .documentation(IMAGE_1_OPERATORS_2_DOCUMENTATION)
                     .build()));
 
     public static final UUID CONTAINER_1_ID = UUID.fromString("7ddb7e87-b965-43a2-9a24-4fa406d998f4");
@@ -1238,6 +1255,16 @@ public abstract class BaseTest {
             .lastRetrieved(Instant.now())
             .build();
 
+    public static final DatabaseBriefDto DATABASE_3_PRIVILEGED_BRIEF_DTO = DatabaseBriefDto.builder()
+            .id(DATABASE_3_ID)
+            .isPublic(DATABASE_3_PUBLIC)
+            .isSchemaPublic(DATABASE_3_SCHEMA_PUBLIC)
+            .name(DATABASE_3_NAME)
+            .internalName(DATABASE_3_INTERNALNAME)
+            .ownerId(USER_3_ID)
+            .identifiers(new LinkedList<>()) /* IDENTIFIER_6_DTO */
+            .build();
+
     public static final DatabaseBriefDto DATABASE_3_BRIEF_DTO = DatabaseBriefDto.builder()
             .id(DATABASE_3_ID)
             .isPublic(DATABASE_3_PUBLIC)
@@ -1494,29 +1521,6 @@ public abstract class BaseTest {
     public static final Instant TABLE_1_CREATED = Instant.ofEpochSecond(1677399975L) /* 2023-02-26 08:26:15 (UTC) */;
     public static final Instant TABLE_1_LAST_MODIFIED = Instant.ofEpochSecond(1677399975L) /* 2023-02-26 08:26:15 (UTC) */;
 
-    public static final TableDto TABLE_1_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_1_ID)
-            .tdbid(DATABASE_1_ID)
-            .internalName(TABLE_1_INTERNAL_NAME)
-            .isVersioned(TABLE_1_VERSIONED)
-            .isPublic(TABLE_1_SCHEMA_PUBLIC)
-            .description(TABLE_1_DESCRIPTION)
-            .name(TABLE_1_NAME)
-            .queueName(TABLE_1_QUEUE_NAME)
-            .routingKey(TABLE_1_ROUTING_KEY)
-            .identifiers(new LinkedList<>())
-            .columns(new LinkedList<>() /* TABLE_1_COLUMNS_DTO */)
-            .constraints(null) /* TABLE_1_CONSTRAINTS_DTO */
-            .owner(USER_1_BRIEF_DTO)
-            .isPublic(DATABASE_1_PUBLIC)
-            .avgRowLength(TABLE_1_AVG_ROW_LENGTH)
-            .numRows(TABLE_1_NUM_ROWS)
-            .dataLength(TABLE_1_DATA_LENGTH)
-            .maxDataLength(TABLE_1_MAX_DATA_LENGTH)
-            .lastRetrieved(Instant.now())
-            .database(null) /* DATABASE_1_PRIVILEGED_DTO */
-            .build();
-
     public static final Table TABLE_1 = Table.builder()
             .id(TABLE_1_ID)
             .tdbid(DATABASE_1_ID)
@@ -1543,7 +1547,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_1_DTO = TableDto.builder()
             .id(TABLE_1_ID)
-            .tdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .internalName(TABLE_1_INTERNAL_NAME)
             .isVersioned(TABLE_1_VERSIONED)
             .isPublic(TABLE_1_IS_PUBLIC)
@@ -1718,32 +1722,9 @@ public abstract class BaseTest {
             .maxDataLength(TABLE_2_MAX_DATA_LENGTH)
             .build();
 
-    public static final TableDto TABLE_2_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_2_ID)
-            .tdbid(DATABASE_1_ID)
-            .internalName(TABLE_2_INTERNALNAME)
-            .isVersioned(TABLE_2_VERSIONED)
-            .isPublic(TABLE_2_IS_PUBLIC)
-            .isSchemaPublic(TABLE_2_SCHEMA_PUBLIC)
-            .description(TABLE_2_DESCRIPTION)
-            .name(TABLE_2_NAME)
-            .queueName(TABLE_2_QUEUE_NAME)
-            .routingKey(TABLE_2_ROUTING_KEY)
-            .identifiers(new LinkedList<>())
-            .columns(new LinkedList<>() /* TABLE_2_COLUMNS_DTO */)
-            .constraints(null) /* TABLE_2_CONSTRAINTS_DTO */
-            .owner(USER_2_BRIEF_DTO)
-            .avgRowLength(TABLE_2_AVG_ROW_LENGTH)
-            .numRows(TABLE_2_NUM_ROWS)
-            .dataLength(TABLE_2_DATA_LENGTH)
-            .maxDataLength(TABLE_2_MAX_DATA_LENGTH)
-            .lastRetrieved(Instant.now())
-            .database(null) /* DATABASE_1_PRIVILEGED_DTO */
-            .build();
-
     public static final TableDto TABLE_2_DTO = TableDto.builder()
             .id(TABLE_2_ID)
-            .tdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .internalName(TABLE_2_INTERNALNAME)
             .isVersioned(TABLE_2_VERSIONED)
             .isPublic(TABLE_2_IS_PUBLIC)
@@ -1815,7 +1796,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_3_DTO = TableDto.builder()
             .id(TABLE_3_ID)
-            .tdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .internalName(TABLE_3_INTERNALNAME)
             .isVersioned(TABLE_3_VERSIONED)
             .isPublic(TABLE_3_IS_PUBLIC)
@@ -1914,7 +1895,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_5_DTO = TableDto.builder()
             .id(TABLE_5_ID)
-            .tdbid(DATABASE_2_ID)
+            .databaseId(DATABASE_2_ID)
             .internalName(TABLE_5_INTERNALNAME)
             .isVersioned(TABLE_5_VERSIONED)
             .isPublic(TABLE_5_IS_PUBLIC)
@@ -1928,29 +1909,6 @@ public abstract class BaseTest {
             .owner(USER_1_BRIEF_DTO)
             .build();
 
-    public static final TableDto TABLE_5_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_5_ID)
-            .tdbid(DATABASE_2_ID)
-            .internalName(TABLE_5_INTERNALNAME)
-            .isVersioned(TABLE_5_VERSIONED)
-            .isPublic(TABLE_5_IS_PUBLIC)
-            .isSchemaPublic(TABLE_5_SCHEMA_PUBLIC)
-            .description(TABLE_5_DESCRIPTION)
-            .name(TABLE_5_NAME)
-            .queueName(TABLE_5_QUEUE_NAME)
-            .routingKey(TABLE_5_ROUTING_KEY)
-            .identifiers(new LinkedList<>())
-            .columns(new LinkedList<>() /* TABLE_5_COLUMNS_DTO */)
-            .constraints(null) /* TABLE_5_CONSTRAINTS_DTO */
-            .owner(USER_5_BRIEF_DTO)
-            .isPublic(DATABASE_2_PUBLIC)
-            .avgRowLength(TABLE_5_AVG_ROW_LENGTH)
-            .numRows(TABLE_5_NUM_ROWS)
-            .dataLength(TABLE_5_DATA_LENGTH)
-            .maxDataLength(TABLE_5_MAX_DATA_LENGTH)
-            .lastRetrieved(Instant.now())
-            .build();
-
     public static final TableBriefDto TABLE_5_BRIEF_DTO = TableBriefDto.builder()
             .id(TABLE_5_ID)
             .databaseId(DATABASE_2_ID)
@@ -1997,7 +1955,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_6_DTO = TableDto.builder()
             .id(TABLE_6_ID)
-            .tdbid(DATABASE_2_ID)
+            .databaseId(DATABASE_2_ID)
             .internalName(TABLE_6_INTERNALNAME)
             .isVersioned(TABLE_6_VERSIONED)
             .isPublic(TABLE_6_IS_PUBLIC)
@@ -2057,7 +2015,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_7_DTO = TableDto.builder()
             .id(TABLE_7_ID)
-            .tdbid(DATABASE_2_ID)
+            .databaseId(DATABASE_2_ID)
             .internalName(TABLE_7_INTERNAL_NAME)
             .isVersioned(TABLE_7_VERSIONED)
             .isPublic(TABLE_7_IS_PUBLIC)
@@ -2124,33 +2082,12 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_4_DTO = TableDto.builder()
             .id(TABLE_4_ID)
-            .tdbid(DATABASE_1_ID)
-            .internalName(TABLE_4_INTERNALNAME)
-            .description(TABLE_4_DESCRIPTION)
-            .name(TABLE_4_NAME)
-            .queueName(TABLE_4_QUEUE_NAME)
-            .routingKey(TABLE_4_ROUTING_KEY)
-            .columns(new LinkedList<>()) /* TABLE_4_COLUMNS_DTO */
-            .constraints(null) /* TABLE_4_CONSTRAINTS_DTO */
-            .isVersioned(TABLE_4_VERSIONED)
-            .isPublic(TABLE_4_IS_PUBLIC)
-            .isSchemaPublic(TABLE_4_SCHEMA_PUBLIC)
-            .owner(USER_1_BRIEF_DTO)
-            .avgRowLength(TABLE_4_AVG_ROW_LENGTH)
-            .numRows(TABLE_4_NUM_ROWS)
-            .dataLength(TABLE_4_DATA_LENGTH)
-            .maxDataLength(TABLE_4_MAX_DATA_LENGTH)
-            .build();
-
-    public static final TableDto TABLE_4_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_4_ID)
-            .tdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .internalName(TABLE_4_INTERNALNAME)
             .description(TABLE_4_DESCRIPTION)
             .name(TABLE_4_NAME)
             .queueName(TABLE_4_QUEUE_NAME)
             .routingKey(TABLE_4_ROUTING_KEY)
-            .database(null) /* DATABASE_1_DTO */
             .columns(new LinkedList<>()) /* TABLE_4_COLUMNS_DTO */
             .constraints(null) /* TABLE_4_CONSTRAINTS_DTO */
             .isVersioned(TABLE_4_VERSIONED)
@@ -2161,7 +2098,6 @@ public abstract class BaseTest {
             .numRows(TABLE_4_NUM_ROWS)
             .dataLength(TABLE_4_DATA_LENGTH)
             .maxDataLength(TABLE_4_MAX_DATA_LENGTH)
-            .lastRetrieved(Instant.now())
             .build();
 
     public static final TableBriefDto TABLE_4_BRIEF_DTO = TableBriefDto.builder()
@@ -2292,7 +2228,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_8_DTO = TableDto.builder()
             .id(TABLE_8_ID)
-            .tdbid(DATABASE_3_ID)
+            .databaseId(DATABASE_3_ID)
             .internalName(TABLE_8_INTERNAL_NAME)
             .description(TABLE_8_DESCRIPTION)
             .isVersioned(TABLE_8_VERSIONED)
@@ -2323,32 +2259,16 @@ public abstract class BaseTest {
             .ownedBy(USER_1_ID)
             .build();
 
-    public static final TableDto TABLE_8_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_8_ID)
-            .tdbid(DATABASE_3_ID)
-            .internalName(TABLE_8_INTERNAL_NAME)
-            .description(TABLE_8_DESCRIPTION)
-            .isVersioned(TABLE_8_VERSIONED)
-            .isPublic(TABLE_8_IS_PUBLIC)
-            .isSchemaPublic(TABLE_8_SCHEMA_PUBLIC)
-            .name(TABLE_8_NAME)
-            .queueName(TABLE_8_QUEUE_NAME)
-            .columns(new LinkedList<>()) /* TABLE_8_COLUMNS_DTO */
-            .owner(USER_1_BRIEF_DTO)
-            .isPublic(DATABASE_3_PUBLIC)
-            .lastRetrieved(Instant.now())
-            .build();
-
     public static final UUID TABLE_9_ID = UUID.fromString("9314294f-04fc-4354-8b1f-2a8aeb566453");
-    public static final String TABLE_9_NAME = "mfcc";
-    public static final String TABLE_9_INTERNAL_NAME = "mfcc";
+    public static final String TABLE_9_NAME = "Weather Location";
+    public static final String TABLE_9_INTERNAL_NAME = "weather_location";
     public static final Boolean TABLE_9_VERSIONED = true;
     public static final Boolean TABLE_9_IS_PUBLIC = false;
     public static final Boolean TABLE_9_SCHEMA_PUBLIC = true;
     public static final Boolean TABLE_9_PROCESSED_CONSTRAINTS = true;
-    public static final String TABLE_9_DESCRIPTION = "Hello mfcc";
+    public static final String TABLE_9_DESCRIPTION = "Location";
     public static final String TABLE_9_QUEUE_NAME = TABLE_9_INTERNAL_NAME;
-    public static final String TABLE_9_ROUTING_KEY = "dbrepo." + DATABASE_3_ID + "." + TABLE_9_ID;
+    public static final String TABLE_9_ROUTING_KEY = "dbrepo." + DATABASE_4_ID + "." + TABLE_9_ID;
     public static final Instant TABLE_9_CREATED = Instant.ofEpochSecond(1688400185L) /* 2023-02-26 08:29:35 (UTC) */;
     public static final Instant TABLE_9_LAST_MODIFIED = Instant.ofEpochSecond(1688400185L) /* 2023-02-26 08:29:35 (UTC) */;
 
@@ -2373,7 +2293,7 @@ public abstract class BaseTest {
 
     public static final TableDto TABLE_9_DTO = TableDto.builder()
             .id(TABLE_9_ID)
-            .tdbid(DATABASE_4_ID)
+            .databaseId(DATABASE_4_ID)
             .internalName(TABLE_9_INTERNAL_NAME)
             .description(TABLE_9_DESCRIPTION)
             .isVersioned(TABLE_9_VERSIONED)
@@ -2398,22 +2318,6 @@ public abstract class BaseTest {
             .ownedBy(USER_1_ID)
             .build();
 
-    public static final TableDto TABLE_9_PRIVILEGED_DTO = TableDto.builder()
-            .id(TABLE_9_ID)
-            .tdbid(DATABASE_4_ID)
-            .internalName(TABLE_9_INTERNAL_NAME)
-            .description(TABLE_9_DESCRIPTION)
-            .isVersioned(TABLE_9_VERSIONED)
-            .isPublic(TABLE_9_IS_PUBLIC)
-            .isSchemaPublic(TABLE_9_SCHEMA_PUBLIC)
-            .name(TABLE_9_NAME)
-            .queueName(TABLE_9_QUEUE_NAME)
-            .columns(new LinkedList<>()) /* TABLE_9_COLUMNS_DTO */
-            .owner(USER_1_BRIEF_DTO)
-            .isPublic(DATABASE_3_PUBLIC)
-            .lastRetrieved(Instant.now())
-            .build();
-
     public static final UUID COLUMN_9_1_ID = UUID.fromString("e03c7578-2d1a-4599-9b11-7174f40efc0a");
     public static final String COLUMN_9_1_NAME = "location";
     public static final String COLUMN_9_1_INTERNAL_NAME = "location";
@@ -2526,6 +2430,54 @@ public abstract class BaseTest {
                     .build())))
             .build();
 
+    public static final UUID QUERY_9_ID = UUID.fromString("df34f0b9-b64c-406c-9109-7a031f4a7f27");
+    public static final String QUERY_9_STATEMENT = "SELECT `lat`, `lng` FROM `mfcc` WHERE `location` = 'Fuji'";
+    public static final String QUERY_9_QUERY_HASH = "dfcdec827b2ea74d89415f8d1ce39354f59ef304444ba4e12e4f3d9d3f35abe3";
+    public static final String QUERY_9_RESULT_HASH = "f0aba070a1fd29e96230d12d7c0b4d08b89820b3cc2dda0575680492010016e7";
+    public static final Instant QUERY_9_CREATED = Instant.now().minus(5, MINUTES);
+    public static final Instant QUERY_9_EXECUTION = Instant.now().minus(1, MINUTES);
+    public static final Instant QUERY_9_LAST_MODIFIED = Instant.ofEpochSecond(1551588555L);
+    public static final Long QUERY_9_RESULT_NUMBER = 6L;
+    public static final Boolean QUERY_9_PERSISTED = true;
+
+    public static final QueryDto QUERY_9_DTO = QueryDto.builder()
+            .id(QUERY_9_ID)
+            .databaseId(DATABASE_3_ID)
+            .query(QUERY_9_STATEMENT)
+            .queryNormalized(QUERY_9_STATEMENT)
+            .resultNumber(QUERY_9_RESULT_NUMBER)
+            .resultHash(QUERY_9_RESULT_HASH)
+            .queryHash(QUERY_9_QUERY_HASH)
+            .execution(QUERY_9_EXECUTION)
+            .isPersisted(QUERY_9_PERSISTED)
+            .owner(USER_1_BRIEF_DTO)
+            .build();
+
+    public static final SubsetDto QUERY_9_SUBSET_DTO = SubsetDto.builder()
+            .tableId(TABLE_9_ID)
+            .columns(new LinkedList<>(List.of(COLUMN_9_2_ID, COLUMN_9_3_ID)))
+            .filter(new LinkedList<>(List.of(FilterDto.builder()
+                    .columnId(COLUMN_9_1_ID)
+                    .operatorId(IMAGE_1_OPERATORS_2_ID)
+                    .value("Fuji")
+                    .type(FilterTypeDto.WHERE)
+                    .build())))
+            .build();
+
+    public static final ViewDto QUERY_9_VIEW_DTO = ViewDto.builder()
+            .query(QUERY_9_STATEMENT)
+            .queryHash(QUERY_9_QUERY_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .columns(new LinkedList<>(List.of(ViewColumnDto.builder()
+                            .name("lat")
+                            .internalName("lat")
+                            .build(),
+                    ViewColumnDto.builder()
+                            .name("lng")
+                            .internalName("lng")
+                            .build())))
+            .build();
+
     public static final String QUEUE_NAME = "dbrepo";
     public static final String QUEUE_VHOST = "dbrepo";
     public static final Boolean QUEUE_AUTO_DELETE = false;
@@ -2819,20 +2771,16 @@ public abstract class BaseTest {
     public static final Instant QUERY_1_EXECUTION = Instant.now();
     public static final Boolean QUERY_1_PERSISTED = true;
 
-    public static final QueryDto QUERY_1_DTO = QueryDto.builder()
-            .id(QUERY_1_ID)
-            .databaseId(DATABASE_1_ID)
-            .query(QUERY_1_STATEMENT)
-            .queryHash(QUERY_1_QUERY_HASH)
-            .resultHash(QUERY_1_RESULT_HASH)
-            .execution(QUERY_1_EXECUTION)
-            .owner(USER_1_BRIEF_DTO)
-            .isPersisted(QUERY_1_PERSISTED)
-            .resultNumber(3L)
+    public static final SubsetDto QUERY_1_SUBSET_DTO = SubsetDto.builder()
+            .tableId(TABLE_1_ID)
+            .columns(new LinkedList<UUID>(List.of(COLUMN_1_1_ID, COLUMN_1_2_ID, COLUMN_1_3_ID, COLUMN_1_4_ID, COLUMN_1_5_ID)))
+            .order(new LinkedList<OrderDto>(List.of(OrderDto.builder()
+                    .columnId(COLUMN_1_1_ID)
+                    .direction(OrderTypeDto.ASC)
+                    .build())))
             .build();
 
     public static final ViewDto QUERY_1_VIEW_DTO = ViewDto.builder()
-            .vdbid(DATABASE_1_ID)
             .query(QUERY_1_STATEMENT)
             .queryHash(QUERY_1_QUERY_HASH)
             .owner(USER_1_BRIEF_DTO)
@@ -2880,20 +2828,6 @@ public abstract class BaseTest {
     public static final Instant QUERY_2_LAST_MODIFIED = Instant.ofEpochSecond(1541588352L);
     public static final Boolean QUERY_2_PERSISTED = false;
 
-    public static final QueryDto QUERY_2_DTO = QueryDto.builder()
-            .id(QUERY_2_ID)
-            .databaseId(DATABASE_2_ID)
-            .query(QUERY_2_STATEMENT)
-            .queryNormalized(QUERY_2_STATEMENT)
-            .resultNumber(QUERY_2_RESULT_NUMBER)
-            .resultHash(QUERY_2_RESULT_HASH)
-            .owner(USER_1_BRIEF_DTO)
-            .queryHash(QUERY_2_QUERY_HASH)
-            .execution(QUERY_2_EXECUTION)
-            .isPersisted(QUERY_2_PERSISTED)
-            .resultNumber(3L)
-            .build();
-
     public static final UUID QUERY_3_ID = UUID.fromString("a9849020-45a7-40a8-9a19-d4ae2b28dd46");
     public static final String QUERY_3_STATEMENT = "SELECT `location`, `mintemp` FROM `weather_aus` WHERE `mintemp` > 10";
     public static final String QUERY_3_QUERY_HASH = "a3d3dd94ebc7653bb5a3b55dd8ed5e91d3d13c335c6855a1eb4eb7ca14c36ced";
@@ -2904,20 +2838,6 @@ public abstract class BaseTest {
     public static final Long QUERY_3_RESULT_NUMBER = 2L;
     public static final Boolean QUERY_3_PERSISTED = true;
 
-    public static final QueryDto QUERY_3_DTO = QueryDto.builder()
-            .id(QUERY_3_ID)
-            .databaseId(DATABASE_1_ID)
-            .query(QUERY_3_STATEMENT)
-            .queryNormalized(QUERY_3_STATEMENT)
-            .resultNumber(QUERY_3_RESULT_NUMBER)
-            .resultHash(QUERY_3_RESULT_HASH)
-            .owner(USER_1_BRIEF_DTO)
-            .queryHash(QUERY_3_QUERY_HASH)
-            .execution(QUERY_3_EXECUTION)
-            .isPersisted(QUERY_3_PERSISTED)
-            .resultNumber(2L)
-            .build();
-
     public static final UUID QUERY_7_ID = UUID.fromString("fe73a325-30a0-444c-b74f-23ce1533e55f");
     public static final String QUERY_7_STATEMENT = "SELECT id, date, a.location, lat, lng FROM weather_aus a JOIN weather_location l on a.location = l.location WHERE date = '2008-12-01'";
     public static final String QUERY_7_QUERY_HASH = "df7da3801dfb5c191ff6711d79ce6455f3c09ec8323ce1ff7208ab85387263f5";
@@ -2929,20 +2849,6 @@ public abstract class BaseTest {
     public static final Long QUERY_7_RESULT_ID = 4L;
     public static final Boolean QUERY_7_PERSISTED = false;
 
-    public static final QueryDto QUERY_7_DTO = QueryDto.builder()
-            .id(QUERY_7_ID)
-            .databaseId(DATABASE_4_ID)
-            .query(QUERY_7_STATEMENT)
-            .queryNormalized(QUERY_7_STATEMENT)
-            .resultNumber(QUERY_7_RESULT_NUMBER)
-            .resultHash(QUERY_7_RESULT_HASH)
-            .owner(USER_1_BRIEF_DTO)
-            .queryHash(QUERY_7_QUERY_HASH)
-            .execution(QUERY_7_EXECUTION)
-            .isPersisted(QUERY_7_PERSISTED)
-            .resultNumber(2L)
-            .build();
-
     public static final UUID QUERY_4_ID = UUID.fromString("18a98197-51ff-4011-9f40-914a11675a6d");
     public static final String QUERY_4_STATEMENT = "SELECT `id`, `value` FROM `mfcc`";
     public static final String QUERY_4_QUERY_HASH = "df7da3801dfb5c191ff6711d79ce6455f3c09ec8323ce1ff7208ab85387263f5";
@@ -2954,18 +2860,6 @@ public abstract class BaseTest {
     public static final Long QUERY_4_RESULT_ID = 4L;
     public static final Boolean QUERY_4_PERSISTED = false;
 
-    public static final QueryDto QUERY_4 = QueryDto.builder()
-            .id(QUERY_4_ID)
-            .query(QUERY_4_STATEMENT)
-            .queryHash(QUERY_4_QUERY_HASH)
-            .resultHash(QUERY_4_RESULT_HASH)
-            .execution(QUERY_4_EXECUTION)
-            .isPersisted(QUERY_4_PERSISTED)
-            .resultNumber(QUERY_4_RESULT_NUMBER)
-            .owner(USER_3_BRIEF_DTO)
-            .isPersisted(QUERY_4_PERSISTED)
-            .build();
-
     public static final List<Map<String, Object>> QUERY_4_RESULT_DTO = new LinkedList<>(List.of(
             new HashMap<>() {{
                 put("id", BigInteger.valueOf(1L));
@@ -3023,8 +2917,18 @@ public abstract class BaseTest {
             .owner(USER_1_BRIEF_DTO)
             .build();
 
+    public static final SubsetDto QUERY_5_SUBSET_DTO = SubsetDto.builder()
+            .tableId(TABLE_8_ID)
+            .columns(new LinkedList<>(List.of(COLUMN_8_1_ID, COLUMN_8_2_ID)))
+            .filter(new LinkedList<>(List.of(FilterDto.builder()
+                    .columnId(COLUMN_8_2_ID)
+                    .operatorId(IMAGE_1_OPERATORS_2_ID)
+                    .value("0")
+                    .type(FilterTypeDto.WHERE)
+                    .build())))
+            .build();
+
     public static final ViewDto QUERY_5_VIEW_DTO = ViewDto.builder()
-            .vdbid(DATABASE_3_ID)
             .query(QUERY_5_STATEMENT)
             .queryHash(QUERY_5_QUERY_HASH)
             .owner(USER_1_BRIEF_DTO)
@@ -3057,19 +2961,6 @@ public abstract class BaseTest {
     public static final Long QUERY_6_RESULT_NUMBER = 1L;
     public static final Boolean QUERY_6_PERSISTED = true;
 
-    public static final QueryDto QUERY_6_DTO = QueryDto.builder()
-            .id(QUERY_6_ID)
-            .databaseId(DATABASE_2_ID)
-            .query(QUERY_6_STATEMENT)
-            .queryNormalized(QUERY_6_STATEMENT)
-            .resultNumber(QUERY_6_RESULT_NUMBER)
-            .resultHash(QUERY_6_RESULT_HASH)
-            .owner(USER_1_BRIEF_DTO)
-            .queryHash(QUERY_6_QUERY_HASH)
-            .execution(QUERY_6_EXECUTION)
-            .isPersisted(QUERY_6_PERSISTED)
-            .build();
-
     public static final List<TableColumn> TABLE_1_COLUMNS = List.of(TableColumn.builder()
                     .id(COLUMN_1_1_ID)
                     .ordinalPosition(0)
@@ -4739,6 +4630,34 @@ public abstract class BaseTest {
             .constraints(TABLE_5_CONSTRAINTS_INVALID_CREATE)
             .build();
 
+    public static final UUID QUERY_8_ID = UUID.fromString("1c466eee-d551-4ef9-a7e0-b5a2d1b15473");
+    public static final String QUERY_8_STATEMENT = "SELECT `id`, `animal_name` FROM `zoo` WHERE `hair` = TRUE AND `feathers` = FALSE;";
+    public static final String QUERY_8_QUERY_HASH = "f0ee0d6dd45e092fca120c4f0eab089f91ed26ccf8dc34a03c6b9c6bb4141271";
+    public static final Long QUERY_8_RESULT_NUMBER = 5L;
+    public static final String QUERY_8_RESULT_HASH = "b5f9cae916d32deff81c5f2e9f8ff43904034bc084b12320730953d120698bed";
+    public static final Instant QUERY_8_EXECUTION = Instant.now().minus(1, MINUTES);
+    public static final Boolean QUERY_8_PERSISTED = true;
+
+    public static final SubsetDto QUERY_8_SUBSET_DTO = SubsetDto.builder()
+            .tableId(TABLE_5_ID)
+            .columns(new LinkedList<>(List.of(COLUMN_5_1_ID, COLUMN_5_2_ID)))
+            .filter(new LinkedList<>(List.of(FilterDto.builder()
+                            .type(FilterTypeDto.WHERE)
+                            .columnId(COLUMN_5_3_ID)
+                            .operatorId(IMAGE_1_OPERATORS_2_ID)
+                            .value("true")
+                            .build(),
+                    FilterDto.builder()
+                            .type(FilterTypeDto.AND)
+                            .build(),
+                    FilterDto.builder()
+                            .type(FilterTypeDto.WHERE)
+                            .columnId(COLUMN_5_4_ID)
+                            .operatorId(IMAGE_1_OPERATORS_2_ID)
+                            .value("false")
+                            .build())))
+            .build();
+
     public static final UUID COLUMN_6_1_ID = UUID.fromString("27b04a64-2849-4fae-b295-858c3e50361f");
 
     public static final UUID COLUMN_6_2_ID = UUID.fromString("1ea62e32-5719-4152-94da-45d37eb88b6f");
@@ -4968,7 +4887,7 @@ public abstract class BaseTest {
     public static final String VIEW_1_INTERNAL_NAME = "junit";
     public static final Boolean VIEW_1_PUBLIC = false;
     public static final Boolean VIEW_1_SCHEMA_PUBLIC = false;
-    public static final String VIEW_1_QUERY = "select `location`, `lat`, `lng` from `weather_location`";
+    public static final String VIEW_1_QUERY = "SELECT `location`, `lat`, `lng` FROM `weather_location`";
     public static final String VIEW_1_QUERY_HASH = "dc81a6877c7c51a6a6f406e1fc2a255e44a0d49a20548596e0d583c3eb849c23";
 
     public static final UUID VIEW_COLUMN_1_1_ID = UUID.fromString("ebf2c5ce-4deb-4cc6-b6f6-61f5d3f6fc98");
@@ -4977,6 +4896,11 @@ public abstract class BaseTest {
 
     public static final UUID VIEW_COLUMN_1_3_ID = UUID.fromString("4f189a5f-c9ca-4518-9758-1a0730f6276b");
 
+    public static final SubsetDto VIEW_1_SUBSET_DTO = SubsetDto.builder()
+            .tableId(TABLE_2_ID)
+            .columns(new LinkedList<>(List.of(COLUMN_2_1_ID, COLUMN_2_2_ID, COLUMN_2_3_ID)))
+            .build();
+
     public static final List<ViewColumnDto> VIEW_1_COLUMNS_DTO = List.of(
             ViewColumnDto.builder()
                     .id(VIEW_COLUMN_1_1_ID)
@@ -5084,10 +5008,10 @@ public abstract class BaseTest {
 
     public static final ViewDto VIEW_1_DTO = ViewDto.builder()
             .id(VIEW_1_ID)
+            .databaseId(DATABASE_1_ID)
             .isInitialView(VIEW_1_INITIAL_VIEW)
             .name(VIEW_1_NAME)
             .internalName(VIEW_1_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
             .isPublic(VIEW_1_PUBLIC)
             .isSchemaPublic(VIEW_1_SCHEMA_PUBLIC)
             .identifiers(null /* VIEW_1_DTO_IDENTIFIERS */)
@@ -5097,21 +5021,6 @@ public abstract class BaseTest {
             .columns(VIEW_1_COLUMNS_DTO)
             .build();
 
-    public static final ViewDto VIEW_1_PRIVILEGED_DTO = ViewDto.builder()
-            .id(VIEW_1_ID)
-            .isInitialView(VIEW_1_INITIAL_VIEW)
-            .name(VIEW_1_NAME)
-            .internalName(VIEW_1_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
-            .isPublic(VIEW_1_PUBLIC)
-            .owner(USER_1_BRIEF_DTO)
-            .query(VIEW_1_QUERY)
-            .queryHash(VIEW_1_QUERY_HASH)
-            .columns(VIEW_1_COLUMNS_DTO)
-            .lastRetrieved(Instant.now())
-            .database(null) /* DATABASE_1_PRIVILEGED_DTO */
-            .build();
-
     public static final ViewBriefDto VIEW_1_BRIEF_DTO = ViewBriefDto.builder()
             .id(VIEW_1_ID)
             .isInitialView(VIEW_1_INITIAL_VIEW)
@@ -5128,7 +5037,7 @@ public abstract class BaseTest {
     public static final CreateViewDto VIEW_1_CREATE_DTO = CreateViewDto.builder()
             .isPublic(VIEW_1_PUBLIC)
             .name(VIEW_1_NAME)
-            .query(VIEW_1_QUERY)
+            .query(VIEW_1_SUBSET_DTO)
             .build();
 
     public static final UUID VIEW_2_ID = UUID.fromString("1921a0a0-e4b0-4d12-a05f-be920af9b5ce");
@@ -5253,11 +5162,10 @@ public abstract class BaseTest {
 
     public static final ViewDto VIEW_2_DTO = ViewDto.builder()
             .id(VIEW_2_ID)
-            .vdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .isInitialView(VIEW_2_INITIAL_VIEW)
             .name(VIEW_2_NAME)
             .internalName(VIEW_2_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
             .isPublic(VIEW_2_PUBLIC)
             .isSchemaPublic(VIEW_2_SCHEMA_PUBLIC)
             .columns(VIEW_2_COLUMNS_DTO)
@@ -5266,22 +5174,6 @@ public abstract class BaseTest {
             .owner(USER_1_BRIEF_DTO)
             .build();
 
-    public static final ViewDto VIEW_2_PRIVILEGED_DTO = ViewDto.builder()
-            .id(VIEW_2_ID)
-            .isInitialView(VIEW_2_INITIAL_VIEW)
-            .name(VIEW_2_NAME)
-            .internalName(VIEW_2_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
-            .isPublic(VIEW_2_PUBLIC)
-            .isSchemaPublic(VIEW_2_SCHEMA_PUBLIC)
-            .owner(USER_2_BRIEF_DTO)
-            .query(VIEW_2_QUERY)
-            .queryHash(VIEW_2_QUERY_HASH)
-            .columns(VIEW_2_COLUMNS_DTO)
-            .lastRetrieved(Instant.now())
-            .database(null) /* DATABASE_1_PRIVILEGED_DTO */
-            .build();
-
     public static final ViewBriefDto VIEW_2_BRIEF_DTO = ViewBriefDto.builder()
             .id(VIEW_2_ID)
             .isInitialView(VIEW_2_INITIAL_VIEW)
@@ -5373,22 +5265,6 @@ public abstract class BaseTest {
             .database(null) /* DATABASE_1 */
             .build();
 
-    public static final ViewDto VIEW_3_PRIVILEGED_DTO = ViewDto.builder()
-            .id(VIEW_3_ID)
-            .isInitialView(VIEW_3_INITIAL_VIEW)
-            .name(VIEW_3_NAME)
-            .internalName(VIEW_3_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
-            .isPublic(VIEW_3_PUBLIC)
-            .isSchemaPublic(VIEW_3_SCHEMA_PUBLIC)
-            .owner(USER_1_BRIEF_DTO)
-            .query(VIEW_3_QUERY)
-            .queryHash(VIEW_3_QUERY_HASH)
-            .columns(VIEW_3_COLUMNS_DTO)
-            .lastRetrieved(Instant.now())
-            .database(null) /* DATABASE_1_PRIVILEGED_DTO */
-            .build();
-
     public static final List<ViewColumn> VIEW_3_COLUMNS = List.of(
             ViewColumn.builder()
                     .id(VIEW_COLUMN_3_1_ID)
@@ -5435,11 +5311,10 @@ public abstract class BaseTest {
 
     public static final ViewDto VIEW_3_DTO = ViewDto.builder()
             .id(VIEW_3_ID)
-            .vdbid(DATABASE_1_ID)
+            .databaseId(DATABASE_1_ID)
             .isInitialView(VIEW_3_INITIAL_VIEW)
             .name(VIEW_3_NAME)
             .internalName(VIEW_3_INTERNAL_NAME)
-            .vdbid(DATABASE_1_ID)
             .isPublic(VIEW_3_PUBLIC)
             .isSchemaPublic(VIEW_3_SCHEMA_PUBLIC)
             .columns(VIEW_3_COLUMNS_DTO)
@@ -5642,11 +5517,10 @@ public abstract class BaseTest {
 
     public static final ViewDto VIEW_4_DTO = ViewDto.builder()
             .id(VIEW_4_ID)
-            .vdbid(DATABASE_2_ID)
+            .databaseId(DATABASE_2_ID)
             .isInitialView(VIEW_4_INITIAL_VIEW)
             .name(VIEW_4_NAME)
             .internalName(VIEW_4_INTERNAL_NAME)
-            .vdbid(DATABASE_2_ID)
             .isPublic(VIEW_4_PUBLIC)
             .isSchemaPublic(VIEW_4_SCHEMA_PUBLIC)
             .query(VIEW_4_QUERY)
@@ -5848,11 +5722,10 @@ public abstract class BaseTest {
 
     public static final ViewDto VIEW_5_DTO = ViewDto.builder()
             .id(VIEW_5_ID)
-            .vdbid(DATABASE_3_ID)
+            .databaseId(DATABASE_3_ID)
             .isInitialView(VIEW_5_INITIAL_VIEW)
             .name(VIEW_5_NAME)
             .internalName(VIEW_5_INTERNAL_NAME)
-            .vdbid(DATABASE_3_ID)
             .isPublic(VIEW_5_PUBLIC)
             .isSchemaPublic(VIEW_5_SCHEMA_PUBLIC)
             .query(VIEW_5_QUERY)
@@ -7687,6 +7560,16 @@ public abstract class BaseTest {
             .lastRetrieved(Instant.now())
             .build();
 
+    public static final DatabaseBriefDto DATABASE_2_PRIVILEGED_BRIEF_DTO = DatabaseBriefDto.builder()
+            .id(DATABASE_2_ID)
+            .isPublic(DATABASE_2_PUBLIC)
+            .isSchemaPublic(DATABASE_2_SCHEMA_PUBLIC)
+            .name(DATABASE_2_NAME)
+            .internalName(DATABASE_2_INTERNALNAME)
+            .identifiers(new LinkedList<>(List.of(IDENTIFIER_5_BRIEF_DTO)))
+            .ownerId(USER_2_ID)
+            .build();
+
     public static final DatabaseBriefDto DATABASE_2_BRIEF_DTO = DatabaseBriefDto.builder()
             .id(DATABASE_2_ID)
             .isPublic(DATABASE_2_PUBLIC)
@@ -8321,4 +8204,85 @@ public abstract class BaseTest {
             .resource(new InputStreamResource(InputStream.nullInputStream()))
             .build();
 
+    public static final QueryDto QUERY_1_DTO = QueryDto.builder()
+            .id(QUERY_1_ID)
+            .databaseId(DATABASE_1_ID)
+            .query(QUERY_1_STATEMENT)
+            .queryHash(QUERY_1_QUERY_HASH)
+            .resultHash(QUERY_1_RESULT_HASH)
+            .execution(QUERY_1_EXECUTION)
+            .owner(USER_1_BRIEF_DTO)
+            .isPersisted(QUERY_1_PERSISTED)
+            .resultNumber(3L)
+            .build();
+
+    public static final QueryDto QUERY_2_DTO = QueryDto.builder()
+            .id(QUERY_2_ID)
+            .databaseId(DATABASE_1_ID)
+            .query(QUERY_2_STATEMENT)
+            .queryNormalized(QUERY_2_STATEMENT)
+            .resultNumber(QUERY_2_RESULT_NUMBER)
+            .resultHash(QUERY_2_RESULT_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .queryHash(QUERY_2_QUERY_HASH)
+            .execution(QUERY_2_EXECUTION)
+            .isPersisted(QUERY_2_PERSISTED)
+            .resultNumber(3L)
+            .build();
+
+    public static final QueryDto QUERY_3_DTO = QueryDto.builder()
+            .id(QUERY_3_ID)
+            .databaseId(DATABASE_1_ID)
+            .query(QUERY_3_STATEMENT)
+            .queryNormalized(QUERY_3_STATEMENT)
+            .resultNumber(QUERY_3_RESULT_NUMBER)
+            .resultHash(QUERY_3_RESULT_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .queryHash(QUERY_3_QUERY_HASH)
+            .execution(QUERY_3_EXECUTION)
+            .isPersisted(QUERY_3_PERSISTED)
+            .resultNumber(2L)
+            .build();
+
+    public static final QueryDto QUERY_7_DTO = QueryDto.builder()
+            .id(QUERY_7_ID)
+            .databaseId(DATABASE_4_ID)
+            .query(QUERY_7_STATEMENT)
+            .queryNormalized(QUERY_7_STATEMENT)
+            .resultNumber(QUERY_7_RESULT_NUMBER)
+            .resultHash(QUERY_7_RESULT_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .queryHash(QUERY_7_QUERY_HASH)
+            .execution(QUERY_7_EXECUTION)
+            .isPersisted(QUERY_7_PERSISTED)
+            .resultNumber(2L)
+            .build();
+
+    public static final QueryDto QUERY_6_DTO = QueryDto.builder()
+            .id(QUERY_6_ID)
+            .databaseId(DATABASE_1_ID)
+            .query(QUERY_6_STATEMENT)
+            .queryNormalized(QUERY_6_STATEMENT)
+            .resultNumber(QUERY_6_RESULT_NUMBER)
+            .resultHash(QUERY_6_RESULT_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .queryHash(QUERY_6_QUERY_HASH)
+            .execution(QUERY_6_EXECUTION)
+            .isPersisted(QUERY_6_PERSISTED)
+            .build();
+
+    public static final QueryDto QUERY_8_DTO = QueryDto.builder()
+            .id(QUERY_8_ID)
+            .databaseId(DATABASE_2_ID)
+            .query(QUERY_8_STATEMENT)
+            .queryNormalized(QUERY_8_STATEMENT)
+            .resultNumber(QUERY_8_RESULT_NUMBER)
+            .resultHash(QUERY_8_RESULT_HASH)
+            .owner(USER_1_BRIEF_DTO)
+            .queryHash(QUERY_8_QUERY_HASH)
+            .execution(QUERY_8_EXECUTION)
+            .isPersisted(QUERY_8_PERSISTED)
+            .resultNumber(3L)
+            .build();
+
 }
diff --git a/dbrepo-search-service/Pipfile.lock b/dbrepo-search-service/Pipfile.lock
index 4dd148a5e49ea67bed885631abe6a387c133682b..576a8b3555ac843919142c4de12b2b61a6bfa9ff 100644
--- a/dbrepo-search-service/Pipfile.lock
+++ b/dbrepo-search-service/Pipfile.lock
@@ -26,90 +26,90 @@
         },
         "aiohttp": {
             "hashes": [
-                "sha256:0450ada317a65383b7cce9576096150fdb97396dcfe559109b403c7242faffef",
-                "sha256:0b5263dcede17b6b0c41ef0c3ccce847d82a7da98709e75cf7efde3e9e3b5cae",
-                "sha256:0d5176f310a7fe6f65608213cc74f4228e4f4ce9fd10bcb2bb6da8fc66991462",
-                "sha256:0ed49efcd0dc1611378beadbd97beb5d9ca8fe48579fc04a6ed0844072261b6a",
-                "sha256:145a73850926018ec1681e734cedcf2716d6a8697d90da11284043b745c286d5",
-                "sha256:1987770fb4887560363b0e1a9b75aa303e447433c41284d3af2840a2f226d6e0",
-                "sha256:246067ba0cf5560cf42e775069c5d80a8989d14a7ded21af529a4e10e3e0f0e6",
-                "sha256:2c311e2f63e42c1bf86361d11e2c4a59f25d9e7aabdbdf53dc38b885c5435cdb",
-                "sha256:2cee3b117a8d13ab98b38d5b6bdcd040cfb4181068d05ce0c474ec9db5f3c5bb",
-                "sha256:2de1378f72def7dfb5dbd73d86c19eda0ea7b0a6873910cc37d57e80f10d64e1",
-                "sha256:30f546358dfa0953db92ba620101fefc81574f87b2346556b90b5f3ef16e55ce",
-                "sha256:34245498eeb9ae54c687a07ad7f160053911b5745e186afe2d0c0f2898a1ab8a",
-                "sha256:392432a2dde22b86f70dd4a0e9671a349446c93965f261dbaecfaf28813e5c42",
-                "sha256:3c0600bcc1adfaaac321422d615939ef300df81e165f6522ad096b73439c0f58",
-                "sha256:4016e383f91f2814e48ed61e6bda7d24c4d7f2402c75dd28f7e1027ae44ea204",
-                "sha256:40cd36749a1035c34ba8d8aaf221b91ca3d111532e5ccb5fa8c3703ab1b967ed",
-                "sha256:413ad794dccb19453e2b97c2375f2ca3cdf34dc50d18cc2693bd5aed7d16f4b9",
-                "sha256:4a93d28ed4b4b39e6f46fd240896c29b686b75e39cc6992692e3922ff6982b4c",
-                "sha256:4ee84c2a22a809c4f868153b178fe59e71423e1f3d6a8cd416134bb231fbf6d3",
-                "sha256:50c5c7b8aa5443304c55c262c5693b108c35a3b61ef961f1e782dd52a2f559c7",
-                "sha256:525410e0790aab036492eeea913858989c4cb070ff373ec3bc322d700bdf47c1",
-                "sha256:526c900397f3bbc2db9cb360ce9c35134c908961cdd0ac25b1ae6ffcaa2507ff",
-                "sha256:54775858c7f2f214476773ce785a19ee81d1294a6bedc5cc17225355aab74802",
-                "sha256:584096938a001378484aa4ee54e05dc79c7b9dd933e271c744a97b3b6f644957",
-                "sha256:6130459189e61baac5a88c10019b21e1f0c6d00ebc770e9ce269475650ff7f73",
-                "sha256:67453e603cea8e85ed566b2700efa1f6916aefbc0c9fcb2e86aaffc08ec38e78",
-                "sha256:68d54234c8d76d8ef74744f9f9fc6324f1508129e23da8883771cdbb5818cbef",
-                "sha256:6dfe7f984f28a8ae94ff3a7953cd9678550dbd2a1f9bda5dd9c5ae627744c78e",
-                "sha256:74bd573dde27e58c760d9ca8615c41a57e719bff315c9adb6f2a4281a28e8798",
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@@ -221,7 +221,7 @@
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@@ -332,44 +332,48 @@
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@@ -611,7 +615,7 @@
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+                "sha256:e0397dd0b3955c61ef9b22838144aa4bef6f0796ba5cc8edfc64d468b93798b4",
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+                "sha256:e14f86b871ea74c3fddc9a40e947d6a5d09def5adc2076ee61fb910a9014fb35",
+                "sha256:e5963ea87f88bddf7edd59644a35a0feecf75f8985430124c253612d4f7d27ae",
+                "sha256:e768267cbe051dd8d1c5305ba690bb153204a09bf2e3de3ae530de955f5b5580",
+                "sha256:e9cb79ecedfc156c0692257ac7ed415243b6c35dd969baa461a6888fc79f2f07",
+                "sha256:ed6f011bedca8585787e5082cce081bac3d30f54520097b2411351b3574e1219",
+                "sha256:f3429fb8e15b20961efca8c8b21432623d85db2228cc73fe22756c6637aa39e7",
+                "sha256:f35eff113ad430b5272bbfc18ba111c66ff525828f24898b4e146eb479a2cdda",
+                "sha256:f3a6cb95074777f1ecda2ca4fa7717caa9ee6e534f42b7575a8f0d4cb0c24013",
+                "sha256:f7356a6da0562190558c4fcc14f0281db191cdf4cb96e7604c06acfcee96df15",
+                "sha256:f88626e3f5e57432e6191cd0c5d6d6b319b635e70b40be2ffba713053e5147dd",
+                "sha256:fad784a31869747df4ac968a351e070c06ca377549e4ace94775aaa3ab33ee06",
+                "sha256:fc869af5cba24d45fb0399b0cfdbcefcf6910bf4dee5d74036a57cf5264b3ff4",
+                "sha256:fee513135b5a58f3bb6d89e48326cd5aa308e4bcdf2f7d59f67c861ada482bf8"
             ],
             "markers": "python_version >= '3.9'",
-            "version": "==0.22.3"
+            "version": "==0.23.1"
         },
         "six": {
             "hashes": [
@@ -1594,7 +1614,7 @@
                 "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df",
                 "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d"
             ],
-            "markers": "python_version >= '3.10'",
+            "markers": "python_version >= '3.9'",
             "version": "==2.3.0"
         },
         "werkzeug": {
@@ -1990,12 +2010,12 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6",
-                "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"
+                "sha256:c69214aa47deac29fad6c2a4f590b9c4a9fdb16a403176fe154b79c0b4d4d820",
+                "sha256:f4efe70cc14e511565ac476b57c279e12a855b11f48f212af1080ef2263d3845"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==8.3.4"
+            "version": "==8.3.5"
         },
         "requests": {
             "hashes": [
@@ -2019,7 +2039,7 @@
                 "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df",
                 "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d"
             ],
-            "markers": "python_version >= '3.10'",
+            "markers": "python_version >= '3.9'",
             "version": "==2.3.0"
         }
     }
diff --git a/dbrepo-search-service/init/Pipfile.lock b/dbrepo-search-service/init/Pipfile.lock
index 11510c1f53745a2c4bd2e01476fdef323f4423b8..9b7988600bb3c2454fea97c28357607adefc8b45 100644
--- a/dbrepo-search-service/init/Pipfile.lock
+++ b/dbrepo-search-service/init/Pipfile.lock
@@ -26,90 +26,90 @@
         },
         "aiohttp": {
             "hashes": [
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             "markers": "python_version >= '3.9'",
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@@ -259,7 +259,7 @@
         },
         "dbrepo": {
             "hashes": [
-                "sha256:779e7ee84ae91131e16100fee7143013b4c231dcd3990d418d024ff76af271e9"
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         },
@@ -639,7 +639,7 @@
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         },
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@@ -725,91 +725,107 @@
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+                "sha256:ee0bd3a7b2e184e88d25c9baa6a9dc609ba25b76daae942edfb14499ac7ec374",
+                "sha256:ee25f1ac091def37c4b59d192bbe3a206298feeb89132a470325bf76ad122a1e",
+                "sha256:efa44f64c37cc30c9f05932c740a8b40ce359f51882c70883cc95feac842da4d",
+                "sha256:f47d52fd9b2ac418c4890aad2f6d21a6b96183c98021f0a48497a904199f006e",
+                "sha256:f857034dc68d5ceb30fb60afb6ff2103087aea10a01b613985610e007053a121",
+                "sha256:fb91d20fa2d3b13deea98a690534697742029f4fb83673a3501ae6e3746508b5",
+                "sha256:fddb8870bdb83456a489ab67c6b3040a8d5a55069aa6f72f9d872235fbc52f54"
             ],
             "markers": "python_version >= '3.9'",
-            "version": "==0.2.1"
+            "version": "==0.3.0"
         },
         "pydantic": {
             "hashes": [
@@ -935,12 +951,12 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6",
-                "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"
+                "sha256:c69214aa47deac29fad6c2a4f590b9c4a9fdb16a403176fe154b79c0b4d4d820",
+                "sha256:f4efe70cc14e511565ac476b57c279e12a855b11f48f212af1080ef2263d3845"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==8.3.4"
+            "version": "==8.3.5"
         },
         "python-dateutil": {
             "hashes": [
@@ -1043,7 +1059,7 @@
                 "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df",
                 "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d"
             ],
-            "markers": "python_version >= '3.10'",
+            "markers": "python_version >= '3.9'",
             "version": "==2.3.0"
         },
         "werkzeug": {
@@ -1307,7 +1323,7 @@
                 "sha256:f7f5baafcc48261359e14bcd6d9bff6d4b28d9103847c9e136694cb0501aef87",
                 "sha256:fc48c783f9c87e60831201f2cce7f3b2e4846bf4d8728eabe54d60700b318a0b"
             ],
-            "markers": "platform_python_implementation != 'PyPy'",
+            "markers": "python_version >= '3.8'",
             "version": "==1.17.1"
         },
         "charset-normalizer": {
@@ -1480,40 +1496,44 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:00918d859aa4e57db8299607086f793fa7813ae2ff5a4637e318a25ef82730f7",
-                "sha256:1e8d181e90a777b63f3f0caa836844a1182f1f265687fac2115fcf245f5fbec3",
-                "sha256:1f9a92144fa0c877117e9748c74501bea842f93d21ee00b0cf922846d9d0b183",
-                "sha256:21377472ca4ada2906bc313168c9dc7b1d7ca417b63c1c3011d0c74b7de9ae69",
-                "sha256:24979e9f2040c953a94bf3c6782e67795a4c260734e5264dceea65c8f4bae64a",
-                "sha256:2a46a89ad3e6176223b632056f321bc7de36b9f9b93b2cc1cccf935a3849dc62",
-                "sha256:322eb03ecc62784536bc173f1483e76747aafeb69c8728df48537eb431cd1911",
-                "sha256:436df4f203482f41aad60ed1813811ac4ab102765ecae7a2bbb1dbb66dcff5a7",
-                "sha256:4f422e8c6a28cf8b7f883eb790695d6d45b0c385a2583073f3cec434cc705e1a",
-                "sha256:53f23339864b617a3dfc2b0ac8d5c432625c80014c25caac9082314e9de56f41",
-                "sha256:5fed5cd6102bb4eb843e3315d2bf25fede494509bddadb81e03a859c1bc17b83",
-                "sha256:610a83540765a8d8ce0f351ce42e26e53e1f774a6efb71eb1b41eb01d01c3d12",
-                "sha256:6c8acf6f3d1f47acb2248ec3ea261171a671f3d9428e34ad0357148d492c7864",
-                "sha256:6f76fdd6fd048576a04c5210d53aa04ca34d2ed63336d4abd306d0cbe298fddf",
-                "sha256:72198e2b5925155497a5a3e8c216c7fb3e64c16ccee11f0e7da272fa93b35c4c",
-                "sha256:887143b9ff6bad2b7570da75a7fe8bbf5f65276365ac259a5d2d5147a73775f2",
-                "sha256:888fcc3fce0c888785a4876ca55f9f43787f4c5c1cc1e2e0da71ad481ff82c5b",
-                "sha256:8e6a85a93d0642bd774460a86513c5d9d80b5c002ca9693e63f6e540f1815ed0",
-                "sha256:94f99f2b943b354a5b6307d7e8d19f5c423a794462bde2bf310c770ba052b1c4",
-                "sha256:9b336599e2cb77b1008cb2ac264b290803ec5e8e89d618a5e978ff5eb6f715d9",
-                "sha256:a2d8a7045e1ab9b9f803f0d9531ead85f90c5f2859e653b61497228b18452008",
-                "sha256:b8272f257cf1cbd3f2e120f14c68bff2b6bdfcc157fafdee84a1b795efd72862",
-                "sha256:bf688f615c29bfe9dfc44312ca470989279f0e94bb9f631f85e3459af8efc009",
-                "sha256:d9c5b9f698a83c8bd71e0f4d3f9f839ef244798e5ffe96febfa9714717db7af7",
-                "sha256:dd7c7e2d71d908dc0f8d2027e1604102140d84b155e658c20e8ad1304317691f",
-                "sha256:df978682c1504fc93b3209de21aeabf2375cb1571d4e61907b3e7a2540e83026",
-                "sha256:e403f7f766ded778ecdb790da786b418a9f2394f36e8cc8b796cc056ab05f44f",
-                "sha256:eb3889330f2a4a148abead555399ec9a32b13b7c8ba969b72d8e500eb7ef84cd",
-                "sha256:f4daefc971c2d1f82f03097dc6f216744a6cd2ac0f04c68fb935ea2ba2a0d420",
-                "sha256:f51f5705ab27898afda1aaa430f34ad90dc117421057782022edf0600bec5f14",
-                "sha256:fd0ee90072861e276b0ff08bd627abec29e32a53b2be44e41dbcdf87cbee2b00"
+                "sha256:04abd71114848aa25edb28e225ab5f268096f44cf0127f3d36975bdf1bdf3390",
+                "sha256:0529b1d5a0105dd3731fa65680b45ce49da4d8115ea76e9da77a875396727b41",
+                "sha256:1bc312dfb7a6e5d66082c87c34c8a62176e684b6fe3d90fcfe1568de675e6688",
+                "sha256:268e4e9b177c76d569e8a145a6939eca9a5fec658c932348598818acf31ae9a5",
+                "sha256:29ecec49f3ba3f3849362854b7253a9f59799e3763b0c9d0826259a88efa02f1",
+                "sha256:2bf7bf75f7df9715f810d1b038870309342bff3069c5bd8c6b96128cb158668d",
+                "sha256:3b721b8b4d948b218c88cb8c45a01793483821e709afe5f622861fc6182b20a7",
+                "sha256:3c00b6b757b32ce0f62c574b78b939afab9eecaf597c4d624caca4f9e71e7843",
+                "sha256:3dc62975e31617badc19a906481deacdeb80b4bb454394b4098e3f2525a488c5",
+                "sha256:4973da6ca3db4405c54cd0b26d328be54c7747e89e284fcff166132eb7bccc9c",
+                "sha256:4e389622b6927d8133f314949a9812972711a111d577a5d1f4bee5e58736b80a",
+                "sha256:51e4de3af4ec3899d6d178a8c005226491c27c4ba84101bfb59c901e10ca9f79",
+                "sha256:5f6f90b72d8ccadb9c6e311c775c8305381db88374c65fa1a68250aa8a9cb3a6",
+                "sha256:6210c05941994290f3f7f175a4a57dbbb2afd9273657614c506d5976db061181",
+                "sha256:6f101b1f780f7fc613d040ca4bdf835c6ef3b00e9bd7125a4255ec574c7916e4",
+                "sha256:7bdcd82189759aba3816d1f729ce42ffded1ac304c151d0a8e89b9996ab863d5",
+                "sha256:7ca25849404be2f8e4b3c59483d9d3c51298a22c1c61a0e84415104dacaf5562",
+                "sha256:81276f0ea79a208d961c433a947029e1a15948966658cf6710bbabb60fcc2639",
+                "sha256:8cadc6e3b5a1f144a039ea08a0bdb03a2a92e19c46be3285123d32029f40a922",
+                "sha256:8e0ddd63e6bf1161800592c71ac794d3fb8001f2caebe0966e77c5234fa9efc3",
+                "sha256:909c97ab43a9c0c0b0ada7a1281430e4e5ec0458e6d9244c0e821bbf152f061d",
+                "sha256:96e7a5e9d6e71f9f4fca8eebfd603f8e86c5225bb18eb621b2c1e50b290a9471",
+                "sha256:9a1e657c0f4ea2a23304ee3f964db058c9e9e635cc7019c4aa21c330755ef6fd",
+                "sha256:9eb9d22b0a5d8fd9925a7764a054dca914000607dff201a24c791ff5c799e1fa",
+                "sha256:af4ff3e388f2fa7bff9f7f2b31b87d5651c45731d3e8cfa0944be43dff5cfbdb",
+                "sha256:b042d2a275c8cee83a4b7ae30c45a15e6a4baa65a179a0ec2d78ebb90e4f6699",
+                "sha256:bc821e161ae88bfe8088d11bb39caf2916562e0a2dc7b6d56714a48b784ef0bb",
+                "sha256:c505d61b6176aaf982c5717ce04e87da5abc9a36a5b39ac03905c4aafe8de7aa",
+                "sha256:c63454aa261a0cf0c5b4718349629793e9e634993538db841165b3df74f37ec0",
+                "sha256:c7362add18b416b69d58c910caa217f980c5ef39b23a38a0880dfd87bdf8cd23",
+                "sha256:d03806036b4f89e3b13b6218fefea8d5312e450935b1a2d55f0524e2ed7c59d9",
+                "sha256:d1b3031093a366ac767b3feb8bcddb596671b3aaff82d4050f984da0c248b615",
+                "sha256:d1c3572526997b36f245a96a2b1713bf79ce99b271bbcf084beb6b9b075f29ea",
+                "sha256:efcfe97d1b3c79e486554efddeb8f6f53a4cdd4cf6086642784fa31fc384e1d7",
+                "sha256:f514ef4cd14bb6fb484b4a60203e912cfcb64f2ab139e88c2274511514bf7308"
             ],
             "markers": "python_version >= '3.7' and python_full_version not in '3.9.0, 3.9.1'",
-            "version": "==44.0.1"
+            "version": "==44.0.2"
         },
         "idna": {
             "hashes": [
@@ -1565,12 +1585,12 @@
         },
         "pytest": {
             "hashes": [
-                "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6",
-                "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"
+                "sha256:c69214aa47deac29fad6c2a4f590b9c4a9fdb16a403176fe154b79c0b4d4d820",
+                "sha256:f4efe70cc14e511565ac476b57c279e12a855b11f48f212af1080ef2263d3845"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==8.3.4"
+            "version": "==8.3.5"
         },
         "requests": {
             "hashes": [
@@ -1594,7 +1614,7 @@
                 "sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df",
                 "sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d"
             ],
-            "markers": "python_version >= '3.10'",
+            "markers": "python_version >= '3.9'",
             "version": "==2.3.0"
         }
     }
diff --git a/dbrepo-search-service/init/lib/dbrepo-1.7.0-py3-none-any.whl b/dbrepo-search-service/init/lib/dbrepo-1.7.0-py3-none-any.whl
index f75ec9ba7a7a4ad6c2897e38abdae20c815f56c7..385c9e224a31ae8811c03908303ea42fc2374d0a 100644
Binary files a/dbrepo-search-service/init/lib/dbrepo-1.7.0-py3-none-any.whl and b/dbrepo-search-service/init/lib/dbrepo-1.7.0-py3-none-any.whl differ
diff --git a/dbrepo-search-service/init/lib/dbrepo-1.7.0.tar.gz b/dbrepo-search-service/init/lib/dbrepo-1.7.0.tar.gz
index be1dcfe68165001dbeacd670709955723a01e323..823a773ca48627ae548e2e0448bef1f5a224b3d8 100644
Binary files a/dbrepo-search-service/init/lib/dbrepo-1.7.0.tar.gz and b/dbrepo-search-service/init/lib/dbrepo-1.7.0.tar.gz differ
diff --git a/dbrepo-search-service/init/tests/test_opensearch_client.py b/dbrepo-search-service/init/tests/test_opensearch_client.py
index fe65fd060a363d5ecebf98fa006db78b6f30c555..54ef2340ab0cf7763122cbf300deb5f8d44d6fa1 100644
--- a/dbrepo-search-service/init/tests/test_opensearch_client.py
+++ b/dbrepo-search-service/init/tests/test_opensearch_client.py
@@ -22,7 +22,7 @@ req = Database(id="209acf92-5c9b-4633-ad99-113c86f6e948",
                                         image=ImageBrief(id="f97791b4-baf4-4b18-8f7d-3084818e6549",
                                                          name="mariadb",
                                                          version="11.1.3",
-                                                         jdbc_method="mariadb")),
+                                                         default=True)),
                tables=[Table(id="f94a6164-cad4-4873-a9fd-3fe5313b2e95",
                              database_id="209acf92-5c9b-4633-ad99-113c86f6e948",
                              name="Data",
@@ -163,7 +163,7 @@ class OpenSearchClientTest(unittest.TestCase):
 
         # test
         try:
-            OpenSearchClient().delete_database(database_id=9999)
+            OpenSearchClient().delete_database(database_id="deadbeef-a5aa-49bb-87e7-6c6271731a1a")
         except opensearchpy.exceptions.NotFoundError:
             pass
 
diff --git a/dbrepo-search-service/lib/dbrepo-1.7.0-py3-none-any.whl b/dbrepo-search-service/lib/dbrepo-1.7.0-py3-none-any.whl
index f75ec9ba7a7a4ad6c2897e38abdae20c815f56c7..385c9e224a31ae8811c03908303ea42fc2374d0a 100644
Binary files a/dbrepo-search-service/lib/dbrepo-1.7.0-py3-none-any.whl and b/dbrepo-search-service/lib/dbrepo-1.7.0-py3-none-any.whl differ
diff --git a/dbrepo-search-service/lib/dbrepo-1.7.0.tar.gz b/dbrepo-search-service/lib/dbrepo-1.7.0.tar.gz
index be1dcfe68165001dbeacd670709955723a01e323..823a773ca48627ae548e2e0448bef1f5a224b3d8 100644
Binary files a/dbrepo-search-service/lib/dbrepo-1.7.0.tar.gz and b/dbrepo-search-service/lib/dbrepo-1.7.0.tar.gz differ
diff --git a/dbrepo-search-service/tests/test_app.py b/dbrepo-search-service/tests/test_app.py
index f05171299ef5fe202ee71ce5b5b347364a4eeed8..d2c8f2bd6049220b83a867562f0459b58b8f344d 100644
--- a/dbrepo-search-service/tests/test_app.py
+++ b/dbrepo-search-service/tests/test_app.py
@@ -22,7 +22,7 @@ req = Database(id="209acf92-5c9b-4633-ad99-113c86f6e948",
                                         image=ImageBrief(id="f97791b4-baf4-4b18-8f7d-3084818e6549",
                                                          name="mariadb",
                                                          version="11.1.3",
-                                                         jdbc_method="mariadb")),
+                                                         default=True)),
                tables=[Table(id="f94a6164-cad4-4873-a9fd-3fe5313b2e95",
                              database_id="209acf92-5c9b-4633-ad99-113c86f6e948",
                              name="Data",
diff --git a/dbrepo-ui/assets/globals.css b/dbrepo-ui/assets/globals.css
index 52da2e48c8c2e7589ddcbce27fe67520acd74763..90dc2854d0e2f73570e127ab550571c9de20cdf9 100644
--- a/dbrepo-ui/assets/globals.css
+++ b/dbrepo-ui/assets/globals.css
@@ -10,4 +10,7 @@ select.native {
   border-style: solid;
   width: 100%; }
 
+.line-break {
+  white-space: pre-wrap; }
+
 /*# sourceMappingURL=globals.css.map */
diff --git a/dbrepo-ui/assets/globals.css.map b/dbrepo-ui/assets/globals.css.map
index 6f271c8f99f4295e8438524dea16b6a48b253635..13ee94918abe425675c52bd70da749839a0957fb 100644
--- a/dbrepo-ui/assets/globals.css.map
+++ b/dbrepo-ui/assets/globals.css.map
@@ -1,6 +1,6 @@
 {
 "version": 3,
-"mappings": "AAAA,CAAE;EACA,KAAK,EAAE,sBAAsB;;AAG/B;aACc;EACZ,OAAO,EAAE,KAAK;;AAGhB,aAAc;EACZ,kBAAkB,EAAE,OAAO;EAC3B,YAAY,EAAE,KAAK;EACnB,KAAK,EAAE,IAAI",
+"mappings": "AAAA,CAAE;EACA,KAAK,EAAE,sBAAsB;;AAG/B;aACc;EACZ,OAAO,EAAE,KAAK;;AAGhB,aAAc;EACZ,kBAAkB,EAAE,OAAO;EAC3B,YAAY,EAAE,KAAK;EACnB,KAAK,EAAE,IAAI;;AAGb,WAAY;EACV,WAAW,EAAE,QAAQ",
 "sources": ["globals.scss"],
 "names": [],
 "file": "globals.css"
diff --git a/dbrepo-ui/assets/globals.scss b/dbrepo-ui/assets/globals.scss
index 5d4d4e06a7cdcde8e801cccd14c0eb2f07c0824d..5e0dce3a0fff1005acb8eb9094b8a8bacbc78501 100644
--- a/dbrepo-ui/assets/globals.scss
+++ b/dbrepo-ui/assets/globals.scss
@@ -12,3 +12,7 @@ select.native {
   border-style: solid;
   width: 100%;
 }
+
+.line-break {
+  white-space: pre-wrap;
+}
diff --git a/dbrepo-ui/components/container/ContainerCard.vue b/dbrepo-ui/components/container/ContainerCard.vue
index ed1479f64d3ad8043968e03edbfcd940190e3fb6..841333c44d913fe63150de59d83d89831a6077a2 100644
--- a/dbrepo-ui/components/container/ContainerCard.vue
+++ b/dbrepo-ui/components/container/ContainerCard.vue
@@ -17,7 +17,7 @@
         height="20"
         class="font-small">
         <template v-slot:default>
-          {{ container.count }} / {{ container.quota }}
+          {{ container.count }} / {{ quota }}
         </template>
       </v-progress-linear>
     </v-card-text>
@@ -39,7 +39,16 @@ export default {
     }
   },
   computed: {
+    quota () {
+      if (!this.container || !this.container.quota) {
+        return '∞'
+      }
+      return this.container.quota
+    },
     utilization () {
+      if (!this.container || !this.container.quota) {
+        return 0
+      }
       return this.container.count * 100.0 / this.container.quota
     },
     colorVariant () {
diff --git a/dbrepo-ui/components/identifier/Persist.vue b/dbrepo-ui/components/identifier/Persist.vue
index f228eade289009193e99be67de0043b4e7007907..004a037c4667fac81bb65d9376d94cfb6a8b80a8 100644
--- a/dbrepo-ui/components/identifier/Persist.vue
+++ b/dbrepo-ui/components/identifier/Persist.vue
@@ -34,7 +34,7 @@
       <v-btn
         v-if="canPublish"
         class="mr-2"
-        :prepend-icon="$vuetify.display.lgAndUp ? 'mdi-content-save-outline' : null"
+        :prepend-icon="$vuetify.display.lgAndUp ? 'mdi-identifier' : null"
         color="primary"
         variant="flat"
         :loading="loadingPublish"
diff --git a/dbrepo-ui/components/identifier/Summary.vue b/dbrepo-ui/components/identifier/Summary.vue
index 6ef120599b515fece88870ad832ed23a508e4ebe..dcbe2f063db7ccbeb601a70a2d1bc85e3f9a5c85 100644
--- a/dbrepo-ui/components/identifier/Summary.vue
+++ b/dbrepo-ui/components/identifier/Summary.vue
@@ -26,7 +26,7 @@
         <v-list-item
           :title="$t('pages.identifier.descriptions.title')"
           density="compact">
-          <p
+          <div
             v-for="(description, i) in identifier.descriptions"
             :key="`d-${i}`">
             <div
@@ -36,7 +36,7 @@
             <span>
               {{ description.description }}
             </span>
-          </p>
+          </div>
         </v-list-item>
         <v-list-item
           :title="$t('pages.identifier.publisher.title')"
diff --git a/dbrepo-ui/components/subset/Builder.vue b/dbrepo-ui/components/subset/Builder.vue
index e66f72e362a845c4aff83c67eada608a46d52023..60f9568a3ff185f76957ada52f6c4fee9711b035 100644
--- a/dbrepo-ui/components/subset/Builder.vue
+++ b/dbrepo-ui/components/subset/Builder.vue
@@ -19,25 +19,13 @@
         :text="$t('navigation.create')"
         @click="execute" />
     </v-toolbar>
-    <v-toolbar flat>
-      <v-tabs
-        v-model="tabs"
-        color="primary">
-        <v-tab
-          value="0"
-          :text="$t('pages.subset.subpages.create.simple.text')" />
-        <v-tab
-          value="1"
-          :text="$t('pages.subset.subpages.create.expert.text')" />
-      </v-tabs>
-    </v-toolbar>
     <v-card
       rounded="0"
       variant="flat">
       <v-card-text>
         <v-form
           ref="form"
-          @submit.prevent>
+          @submit.prevent="$refs.form.validate()">
           <v-row
             v-if="isView"
             class="mt-1"
@@ -122,16 +110,16 @@
                     item-title="internal_name"
                     :disabled="!table || isExecuted"
                     :items="columns"
+                    :rules="[v => !!v || $t('validation.required')]"
+                    required
                     persistent-hint
                     clearable
                     :variant="inputVariant"
                     :label="$t('pages.view.subpages.create.columns.label')"
                     :hint="$t('pages.view.subpages.create.columns.hint')"
-                    :rules="[v => !!v || $t('validation.required')]"
                     :loading="loadingColumns"
                     return-object
-                    multiple
-                    @update:model-value="buildQuery">
+                    multiple>
                     <template
                       v-slot:prepend-item>
                       <v-list-item
@@ -157,14 +145,24 @@
                   <v-btn
                     v-if="clauses.length === 0"
                     size="small"
-                    color="secondary"
+                    color="tertiary"
                     variant="flat"
                     :text="$t('pages.subset.subpages.create.filter.text')"
                     :disabled="clausesDisabled"
-                    @click="addFirst" />
+                    @click="addFirstFilter" />
+                  <v-btn
+                    v-if="clauses.length === 0 && sorts.length === 0"
+                    class="ml-2"
+                    size="small"
+                    color="tertiary"
+                    variant="flat"
+                    :text="$t('pages.subset.subpages.create.order.text')"
+                    :disabled="clausesDisabled"
+                    @click="addFirstSort" />
                 </v-col>
               </v-row>
-              <div class="mb-5">
+              <div
+                class="mb-5">
                 <v-row
                   v-if="clauses.length > 0">
                   <v-col
@@ -184,6 +182,9 @@
                         item-title="internal_name"
                         item-value="internal_name"
                         variant="underlined"
+                        :rules="[v => !!v || $t('validation.required')]"
+                        required
+                        clearable
                         persistent-hint
                         :label="$t('pages.subset.subpages.create.filter.column.label')"
                         :hint="$t('pages.subset.subpages.create.filter.column.hint')"
@@ -196,9 +197,12 @@
                         :disabled="clausesDisabled"
                         item-title="value"
                         item-value="value"
+                        :rules="[v => !!v || $t('validation.required')]"
+                        required
+                        clearable
                         persistent-hint
-                        :label="operatorHint(clause.params[1])"
-                        :hint="$t('pages.subset.subpages.create.filter.operator.label')"
+                        :label="$t('pages.subset.subpages.create.filter.operator.label')"
+                        :hint="operatorHint(clause.params[1])"
                         :items="operators">
                         <template
                           v-slot:append>
@@ -224,6 +228,9 @@
                       <v-text-field
                         v-model="clause.params[2]"
                         :disabled="clausesDisabled"
+                        :rules="[v => !!v || $t('validation.required')]"
+                        required
+                        clearable
                         persistent-hint
                         :label="$t('pages.subset.subpages.create.filter.value.label')"
                         :hint="$t('pages.subset.subpages.create.filter.value.hint')" />
@@ -237,7 +244,7 @@
                         color="error"
                         variant="flat"
                         :text="$t('pages.subset.subpages.create.filter.remove.text')"
-                        @click="remove(idx)" />
+                        @click="removeFilter(idx)" />
                     </v-col>
                   </v-row>
                   <v-row
@@ -257,7 +264,7 @@
                           :disabled="!canAdd(idx) || clausesDisabled"
                           class="mt-2 mr-1"
                           variant="flat"
-                          color="secondary"
+                          color="tertiary"
                           size="small"
                           :text="$t('pages.subset.subpages.create.filter.and.text')"
                           @click="addAnd" />
@@ -265,7 +272,7 @@
                           :disabled="!canAdd(idx) || clausesDisabled"
                           class="mt-2"
                           variant="flat"
-                          color="secondary"
+                          color="tertiary"
                           size="small"
                           :text="$t('pages.subset.subpages.create.filter.or.text')"
                           @click="addOr" />
@@ -274,33 +281,70 @@
                   </div>
                 </div>
               </div>
-            </v-window-item>
-            <v-window-item
-              value="1">
+              <div class="mb-5">
+                <v-row
+                  v-if="sorts.length > 0">
+                  <v-col
+                    lg="8"
+                    class="text-center">
+                    <pre>SORT BY</pre>
+                  </v-col>
+                </v-row>
+                <v-row
+                  v-for="(sort, idx) in sorts"
+                  key="idx">
+                  <v-col
+                    lg="4">
+                    <v-select
+                      v-model="sort.column_id"
+                      :disabled="clausesDisabled"
+                      item-title="internal_name"
+                      item-value="id"
+                      :rules="[v => !!v || $t('validation.required')]"
+                      required
+                      clearable
+                      variant="underlined"
+                      persistent-hint
+                      :label="$t('pages.subset.subpages.create.filter.column.label')"
+                      :hint="$t('pages.subset.subpages.create.filter.column.hint')"
+                      :items="columns" />
+                  </v-col>
+                  <v-col
+                    lg="4">
+                    <v-select
+                      v-model="sort.direction"
+                      :disabled="clausesDisabled"
+                      item-title="title"
+                      item-value="value"
+                      clearable
+                      persistent-hint
+                      :label="$t('pages.subset.subpages.create.order.direction.label')"
+                      :items="sortings" />
+                  </v-col>
+                  <v-col
+                    lg="1">
+                    <v-btn
+                      :disabled="clausesDisabled"
+                      class="mt-4"
+                      size="small"
+                      color="error"
+                      variant="flat"
+                      :text="$t('pages.subset.subpages.create.order.remove.text')"
+                      @click="removeSort(idx)" />
+                  </v-col>
+                </v-row>
+              </div>
               <v-row
-                v-if="hasUnsupported"
-                dense>
-                <v-col>
-                  <v-alert
-                    border="start"
-                    color="warning">
-                    <span>
-                      {{ $t('pages.subset.subpages.create.expert.warn') }}
-                    </span>
-                    <pre style="white-space:inherit;">{{ unsupported.join(', ') }}</pre>
-                  </v-alert>
-                </v-col>
-              </v-row>
-              <v-row dense>
-                <v-col>
-                  {{ $t('pages.subset.subpages.create.subtitle') }}
-                </v-col>
-              </v-row>
-              <v-row dense>
-                <v-col>
-                  <Raw
-                    class="mt-2"
-                    @sql="updateSql" />
+                v-if="(sorts.length > 0 || clauses.length > 0) && select.length > 0">
+                <v-col
+                  lg="8">
+                  <v-btn
+                    size="small"
+                    color="tertiary"
+                    variant="flat"
+                    :text="$t('pages.subset.subpages.create.order.text')"
+                    :disabled="clausesDisabled"
+                    @click="addFirstSort" />
                 </v-col>
               </v-row>
             </v-window-item>
@@ -315,7 +359,6 @@
 import Raw from '@/components/subset/Raw.vue'
 import Results from '@/components/subset/Results.vue'
 import { useCacheStore } from '@/stores/cache.js'
-import { format } from 'sql-formatter'
 
 export default {
   components: {
@@ -335,6 +378,7 @@ export default {
       table: null,
       views: [],
       columns: [],
+      sorts: [],
       timestamp: null,
       executeDifferentTimestamp: false,
       dataOptions: [
@@ -347,21 +391,24 @@ export default {
       ],
       tableDetails: null,
       resultId: null,
-      valid: false,
       errorKeyword: null,
       query: {
-        raw: null,
-        formatted: null
+        table_id: null,
+        columns: [],
+        filter: null
       },
       view: {
         is_public: true,
         is_schema_public: true,
-        name: null,
-        query: null
+        name: null
       },
       select: [],
       clauses: [],
       tabs: 0,
+      sortings: [
+        { title: 'Ascending ↓', value: 'asc' },
+        { title: 'Descening ↑', value: 'desc' },
+      ],
       loadingQuery: false,
       loadingColumns: false,
       cacheStore: useCacheStore()
@@ -398,14 +445,6 @@ export default {
       }
       return this.database.views.map(v => v.internal_name)
     },
-    sql () {
-      if (!this.query.raw) {
-        return ''
-      }
-      return this.query.raw.replaceAll('\n', ' ') /* remove newline */
-        .replaceAll(/\s+/g, ' ') /* remove whitespace */
-        .trim()
-    },
     clausesDisabled () {
       return this.isExecuted
     },
@@ -421,36 +460,46 @@ export default {
     isExecuted () {
       return this.resultId !== null
     },
-    valid () {
-      if (this.isView) {
-        return this.valid && !this.hasUnsupported
-      }
-      return this.sql.length > 0 && !this.hasUnsupported
-    },
     unsupported () {
       if (!this.$config.public.database.unsupported) {
         return []
       }
       return this.$config.public.database.unsupported.split(',')
     },
-    hasUnsupported () {
-      if (!this.sql) {
-        return false
+    subset () {
+      if (!this.table || !this.select) {
+        return null
       }
-      const unsupported = this.unsupported.map(k => k.toLowerCase())
-      for (let i = 0; i < unsupported.length; i++) {
-        if (this.sql.toLowerCase().includes(unsupported[i])) {
-          console.warn('query contains unsupported keyword', unsupported[i])
-          return true
-        }
+      return {
+        table_id: this.table.id,
+        columns: this.select.map(column => column.id),
+        filter: this.clauses ? this.clauses.map(clause => {
+          if (clause.type === 'or' || clause.type === 'and') {
+            return {
+              type: clause.type
+            }
+          }
+          const filtered_column = this.table.columns.filter(column => column.internal_name === clause.params[0])
+          const filtered_operator = this.database.container.image.operators.filter(operator => operator.value === clause.params[1])
+          if (!filtered_column || filtered_column.length === 0 || !filtered_operator || filtered_operator.length === 0) {
+            return null
+          }
+          const json = {
+            type: clause.type,
+            column_id: filtered_column[0].id,
+            operator_id: filtered_operator[0].id,
+            value: clause.params[2]
+          }
+          return json
+        }) : null,
+        order: this.sorts
       }
-      return this.sql.includes(';')
     },
     canExecute () {
       if (this.isView) {
-        return this.view.name !== null && this.view.is_public !== null && this.view.query !== null
+        return this.view.name !== null && this.view.is_public !== null && this.subset !== null
       }
-      return this.sql !== null && this.sql !== '' && !this.sql.includes(';')
+      return this.subset !== null && this.subset.columns && this.subset.columns.length > 0 && this.$refs.form.isValid
     },
     inputVariant () {
       const runtimeConfig = useRuntimeConfig()
@@ -462,13 +511,6 @@ export default {
     }
   },
   watch: {
-    clauses: {
-      deep: true,
-      immediate: true,
-      handler () {
-        this.buildQuery()
-      }
-    },
     table () {
       this.select = []
       if (!this.table) {
@@ -538,7 +580,7 @@ export default {
       /* pre-check */
       this.loadingQuery = true
       const queryService = useQueryService()
-      queryService.execute(this.$route.params.database_id, { statement: this.sql }, this.timestamp, 0, 1)
+      queryService.execute(this.$route.params.database_id, this.subset, this.timestamp, 0, 1)
         .then(async (subset) => {
           const toast = useToastInstance()
           toast.success(this.$t('success.subset.create'))
@@ -549,6 +591,7 @@ export default {
           this.loadingQuery = false
           const toast = useToastInstance()
           if (typeof code !== 'string') {
+            toast.error(this.$t('error.query.invalid'))
             return
           }
           toast.error(`${this.$t(code)}: ${message}`)
@@ -556,7 +599,7 @@ export default {
     },
     createView () {
       this.loadingQuery = true
-      this.view.query = this.sql
+      this.view.query = this.subset
       const viewService = useViewService()
       viewService.create(this.$route.params.database_id, this.view)
         .then((simpleView) => {
@@ -587,39 +630,32 @@ export default {
           toast.error(this.$t(code))
         })
     },
-    buildQuery () {
-      if (!this.table) {
-        return
-      }
-      const queryService = useQueryService()
-      const { error, reason, column, raw, formatted } = queryService.build(this.table.internal_name, this.select, this.columnTypes, this.clauses)
-      if (error) {
-        const toast = useToastInstance()
-        toast.error(this.$t('error.query.' + reason) + ' ' + column)
-        return
-      }
-      this.query.raw = raw
-      if (this.isView) {
-        this.view.query = raw
-      }
-      this.query.formatted = formatted
-    },
     canAdd (idx) {
       return idx === this.clauses.length - 1
     },
-    addFirst () {
+    addFirstFilter () {
       const column = (this.columnNames && this.columnNames.length) ? this.columnNames[0] : ''
       this.clauses.push({ type: 'where', params: [column, '=', ''] })
+      this.$refs.form.validate()
+    },
+    addFirstSort () {
+      if (this.sorts.length === 0) {
+        this.columns.filter(c => this.table.constraints.primary_key.map(pk =>
+          pk.column.id).includes(c.id)).forEach(pk => this.sorts.push({ column_id: pk.id, direction: 'asc' }))
+      } else {
+        this.sorts.push({ column_id: null, direction: null})
+      }
+      this.$refs.form.validate()
     },
     addAnd () {
       this.clauses.push({ type: 'and' })
-      this.addFirst()
+      this.addFirstFilter()
     },
     addOr () {
       this.clauses.push({ type: 'or' })
-      this.addFirst()
+      this.addFirstFilter()
     },
-    remove (idx) {
+    removeFilter (idx) {
       if (idx === 0) {
         if (this.clauses.length === 1) {
           this.clauses.splice(idx, 1)
@@ -631,23 +667,17 @@ export default {
         this.clauses.splice(idx - 1, 2)
       }
     },
-    updateSql (event) {
-      const { raw } = event
-      if (raw) {
-        this.query.raw = raw
-        if (this.isView) {
-          this.view.query = raw
-        }
-        this.query.formatted = format(raw, {
-          language: 'mysql',
-          keywordCase: 'upper'
-        })
+    removeSort (idx) {
+      if (idx === 0) {
+        this.sorts.splice(idx, 1)
+      } else {
+        // remove current and previous
+        this.sorts.splice(idx - 1, 1)
       }
     },
     toggleColumns () {
       if (this.select.length !== this.columns.length) {
         this.select = this.columns
-        this.buildQuery()
       } else {
         this.select = []
       }
@@ -661,7 +691,7 @@ export default {
     },
     operatorHint (value) {
       const filter = this.operators.filter(o => o.value === value)
-      if (filter.length !== 1) {
+      if (filter.length !== 1 || filter[0].display_name === filter[0].value) {
         return null
       }
       return filter[0].display_name
diff --git a/dbrepo-ui/components/subset/SubsetToolbar.vue b/dbrepo-ui/components/subset/SubsetToolbar.vue
index 2e6dae63025d72ad8890ad70ef69daca040cc333..070cdb4a3bb66678f81dd8b42b0d5e69ddf25ab6 100644
--- a/dbrepo-ui/components/subset/SubsetToolbar.vue
+++ b/dbrepo-ui/components/subset/SubsetToolbar.vue
@@ -34,7 +34,7 @@
         color="primary"
         variant="flat"
         class="mr-2"
-        :prepend-icon="$vuetify.display.lgAndUp ? 'mdi-content-save-outline' : null"
+        :prepend-icon="$vuetify.display.lgAndUp ? 'mdi-identifier' : null"
         :to="`/database/${$route.params.database_id}/subset/${$route.params.subset_id}/persist`">
         {{ ($vuetify.display.lgAndUp ? $t('toolbars.subset.pid.xl') + ' ' : '') + $t('toolbars.subset.pid.permanent') }}
       </v-btn>
diff --git a/dbrepo-ui/components/table/TableToolbar.vue b/dbrepo-ui/components/table/TableToolbar.vue
index e09cd67cba31e8d3aaec7e9055078fa354bd4ded..7311e0afd5775a620f6cddbd2fef005d192fc782 100644
--- a/dbrepo-ui/components/table/TableToolbar.vue
+++ b/dbrepo-ui/components/table/TableToolbar.vue
@@ -48,7 +48,7 @@
         :to="`/database/${$route.params.database_id}/view/create?tid=${$route.params.table_id}`" />
       <v-btn
         v-if="canGetPid"
-        :prepend-icon="$vuetify.display.mdAndUp ? 'mdi-content-save-outline' : null"
+        :prepend-icon="$vuetify.display.mdAndUp ? 'mdi-identifier' : null"
         color="primary"
         variant="flat"
         :text="($vuetify.display.mdAndUp ? 'Get ' : '') + 'PID'"
diff --git a/dbrepo-ui/components/view/ViewToolbar.vue b/dbrepo-ui/components/view/ViewToolbar.vue
index 9f44c8d4804d8b9ca8b81bdbab5e95b7ae5ce5c5..b5dc0caac551fc7017d2bdca301ac7aad6021ab8 100644
--- a/dbrepo-ui/components/view/ViewToolbar.vue
+++ b/dbrepo-ui/components/view/ViewToolbar.vue
@@ -19,7 +19,7 @@
     <v-btn
       v-if="canCreatePid"
       class="mr-2"
-      :prepend-icon="$vuetify.display.mdAndUp ? 'mdi-content-save-outline' : null"
+      :prepend-icon="$vuetify.display.mdAndUp ? 'mdi-identifier' : null"
       variant="flat"
       color="primary"
       :text="($vuetify.display.mdAndUp ? $t('toolbars.view.pid.xl') + ' ' : '') + $t('toolbars.view.pid.permanent')"
diff --git a/dbrepo-ui/composables/query-service.ts b/dbrepo-ui/composables/query-service.ts
index c0d5c0db7c6bab8c949ec581a023a138f7c065ac..5a86c09d1b1b7017e362a62c0cc5df33c545fd6c 100644
--- a/dbrepo-ui/composables/query-service.ts
+++ b/dbrepo-ui/composables/query-service.ts
@@ -1,4 +1,3 @@
-import {format} from 'sql-formatter'
 import type {AxiosRequestConfig} from 'axios'
 import {axiosErrorToApiError} from '@/utils'
 
@@ -77,11 +76,11 @@ export const useQueryService = (): any => {
     })
   }
 
-  async function execute(databaseId: string, data: ExecuteStatementDto, timestamp: Date | null, page: number, size: number): Promise<QueryResultDto> {
+  async function execute(databaseId: string, subset: SubsetDto, timestamp: Date | null, page: number, size: number): Promise<QueryResultDto> {
     const axios = useAxiosInstance()
     console.debug('execute query in database with id', databaseId)
     return new Promise<QueryResultDto>((resolve, reject) => {
-      axios.post<QueryResultDto>(`/api/database/${databaseId}/subset`, data, {params: mapFilter(timestamp, page, size), timeout: 600_000})
+      axios.post<QueryResultDto>(`/api/database/${databaseId}/subset`, subset, {params: mapFilter(timestamp, page, size), timeout: 600_000})
         .then((response) => {
           console.info('Executed query with id', response.data.id, ' in database with id', databaseId)
           const result: QueryResultDto = {
@@ -136,69 +135,6 @@ export const useQueryService = (): any => {
     })
   }
 
-  function build(table: TableDto, columns: ColumnDto[], types: DataTypeDto[], clauses: any[]): QueryBuildResultDto {
-    var sql = 'SELECT'
-    for (let i = 0; i < columns.length; i++) {
-      sql += `${i > 0 ? ',' : ''} \`${columns[i].internal_name}\``
-    }
-    sql += ` FROM \`${table}\``
-    if (clauses.length > 0) {
-      sql += ' WHERE'
-      for (let i = 0; i < clauses.length; i++) {
-        const clause = clauses[i]
-        if (clause.type === 'and' || clause.type === 'or') {
-          sql += ` ${clause.type.toUpperCase()} `
-          continue
-        }
-        const filteredColumn = columns.filter(c => c.internal_name === clause.params[0])
-        if (filteredColumn.length === 0) {
-          return {
-            error: true,
-            reason: 'column.exists',
-            column: clause.params[0],
-            raw: null,
-            formatted: null
-          }
-        }
-        sql += ` \`${clause.params[0]}\` ${clause.params[1]} `
-        const filteredType = types.filter(t => t.value === filteredColumn[0].type)
-        if (filteredType.length === 0) {
-          return {
-            error: true,
-            reason: 'exists',
-            column: filteredColumn[0].type,
-            raw: null,
-            formatted: null
-          }
-        }
-        if (!filteredType[0].is_buildable) {
-          return {
-            error: true,
-            reason: 'build',
-            column: filteredColumn[0].type,
-            raw: null,
-            formatted: null
-          }
-        }
-        if (filteredType[0].is_quoted) {
-          sql += `'${clause.params[2]}'`
-        } else {
-          sql += `${clause.params[2]}`
-        }
-      }
-    }
-    return {
-      error: false,
-      reason: null,
-      column: null,
-      raw: sql,
-      formatted: format(sql, {
-        language: 'mysql',
-        keywordCase: 'upper'
-      })
-    }
-  }
-
   function mapFilter(timestamp: Date | null, page: number, size: number) {
     if (!timestamp) {
       return {page, size}
@@ -206,5 +142,5 @@ export const useQueryService = (): any => {
     return {timestamp, page, size}
   }
 
-  return {findAll, findOne, update, exportCsv, execute, reExecuteData, reExecuteCount, build}
+  return {findAll, findOne, update, exportCsv, execute, reExecuteData, reExecuteCount}
 }
diff --git a/dbrepo-ui/dto/index.ts b/dbrepo-ui/dto/index.ts
index 2f20f174299cc789abe52c94f39d121dd8faa30d..e804c3eabf60d0bd0ba4996084c76658673d16d3 100644
--- a/dbrepo-ui/dto/index.ts
+++ b/dbrepo-ui/dto/index.ts
@@ -437,8 +437,9 @@ interface DatabaseModifyImageDto {
 
 interface ViewCreateDto {
   name: string;
-  query: string;
+  query: SubsetDto;
   is_public: boolean;
+  is_schema_public: boolean;
 }
 
 interface ViewUpdateDto {
@@ -477,10 +478,6 @@ interface TableCsvDeleteDto {
   keys: Map<string, string>;
 }
 
-interface ExecuteStatementDto {
-  statement: string;
-}
-
 interface ApiErrorDto {
   status: string;
   message: string;
@@ -599,6 +596,25 @@ interface ImportCsv {
   line_termination: string;
 }
 
+interface FilterDto {
+  type: string;
+  value: string;
+  column_id: string;
+  operator_id: string;
+}
+
+interface OrderDto {
+  column_id: string;
+  direction: string;
+}
+
+interface SubsetDto {
+  table_id: string;
+  columns: string[];
+  filter: FilterDto[] | null;
+  order: OrderDto[] | null;
+}
+
 interface QueryResultDto {
   id: string | null;
   result: any;
diff --git a/dbrepo-ui/locales/en-US.json b/dbrepo-ui/locales/en-US.json
index a42a56411b825f5eb011b311ce995e9f291c7725..55a9692c2d4650d2fb3970322aafe026e2da8d10 100644
--- a/dbrepo-ui/locales/en-US.json
+++ b/dbrepo-ui/locales/en-US.json
@@ -1015,6 +1015,15 @@
             "or": {
               "text": "Add \"OR\" Filter"
             }
+          },
+          "order": {
+            "text": "Add Sorting",
+            "direction": {
+              "label": "Direction"
+            },
+            "remove": {
+              "text": "Remove"
+            }
           }
         }
       }
@@ -1270,7 +1279,8 @@
     "view": {
       "create": "Failed to create view",
       "missing": "Failed to find view in metadata database",
-      "invalid": "Failed to map view query to columns in data service"
+      "invalid": "Failed to map view query to columns in data service",
+      "exists": "View with this name exists already"
     },
     "broker": {
       "connection": "Failed to contact broker service",
diff --git a/dbrepo-ui/nuxt.config.ts b/dbrepo-ui/nuxt.config.ts
index b3da7bd98c657513e85c64cd51fac4c118d433b7..9d6a18146f688fe76c81921334637bb921df42fa 100644
--- a/dbrepo-ui/nuxt.config.ts
+++ b/dbrepo-ui/nuxt.config.ts
@@ -90,7 +90,6 @@ export default defineNuxtConfig({
         prefix: '/'
       },
       database: {
-        unsupported: 'AVG,BIT_AND,BIT_OR,BIT_XOR,COUNT,COUNTDISTINCT,GROUP_CONCAT,JSON_ARRAYAGG,JSON_OBJECTAGG,MAX,MIN,STD,STDDEV,STDDEV_POP,STDDEV_SAMP,SUM,VARIANCE,VAR_POP,VAR_SAMP,--',
         image: {
           width: 200,
           height: 200
diff --git a/dbrepo-ui/package.json b/dbrepo-ui/package.json
index d7d4917e9f45f113156951746486755d91ae7bed..77edd08c86fa398d83389a474e8ed458b6913651 100644
--- a/dbrepo-ui/package.json
+++ b/dbrepo-ui/package.json
@@ -32,7 +32,6 @@
     "parse-md": "^3.0.3",
     "pinia": "^2.1.7",
     "qs": "^6.11.2",
-    "sql-formatter": "^15.2.0",
     "tus-js-client": "^4.0.1",
     "vue": "^3.4.21",
     "vue-axios": "^3.5.2",
diff --git a/dbrepo-ui/pages/database/[database_id]/subset/[subset_id]/info.vue b/dbrepo-ui/pages/database/[database_id]/subset/[subset_id]/info.vue
index d3b5f624d7425992e4858caa2e000dcc82c1ec59..d0140a6fa1295d0abda828a491f3765d668548a7 100644
--- a/dbrepo-ui/pages/database/[database_id]/subset/[subset_id]/info.vue
+++ b/dbrepo-ui/pages/database/[database_id]/subset/[subset_id]/info.vue
@@ -40,17 +40,18 @@
               :resource="identifier" />
           </v-list-item>
           <v-list-item
-            v-if="subset.creator"
+            v-if="subset.owner"
             :title="$t('pages.subset.creator.title')"
             density="compact">
             <UserBadge
-              :user="subset.creator"
+              :user="subset.owner"
               :other-user="cacheUser" />
           </v-list-item>
           <v-list-item
             :title="$t('pages.subset.query.title')"
             density="compact">
-            <pre>{{ subset.query }}</pre>
+            <pre
+              class="line-break">{{ subset.query }}</pre>
           </v-list-item>
           <v-list-item
             :title="`${$t('pages.subset.query.title')} ${$t('pages.subset.hash.title')}`"
diff --git a/dbrepo-ui/pages/database/[database_id]/view/[view_id]/info.vue b/dbrepo-ui/pages/database/[database_id]/view/[view_id]/info.vue
index 395be401c08730d0b9880fbbe21c61ccf6bf2db7..b5266b79f20ac518984a716e1c130580f7dd1f56 100644
--- a/dbrepo-ui/pages/database/[database_id]/view/[view_id]/info.vue
+++ b/dbrepo-ui/pages/database/[database_id]/view/[view_id]/info.vue
@@ -32,7 +32,8 @@
               </v-list-item>
               <v-list-item
                 :title="$t('pages.view.query.title')">
-                <pre>{{ view.query }}</pre>
+                <pre
+                  class="line-break">{{ view.query }}</pre>
               </v-list-item>
               <v-list-item
                 :title="$t('pages.view.owner.title')">
diff --git a/helm/dbrepo/files/01-setup-schema.sql b/helm/dbrepo/files/01-setup-schema.sql
index 17d303ea7d6001e73a55b19cc286e8d9980e1d35..12e0f02a169c969ea0036652dc2198b79e492ebf 100644
--- a/helm/dbrepo/files/01-setup-schema.sql
+++ b/helm/dbrepo/files/01-setup-schema.sql
@@ -280,6 +280,7 @@ CREATE TABLE IF NOT EXISTS `mdb_view`
     last_modified    TIMESTAMP,
     owned_by         VARCHAR(36)  NOT NULL,
     PRIMARY KEY (`id`),
+    UNIQUE (`vdbid`, `internal_name`),
     FOREIGN KEY (`vdbid`) REFERENCES mdb_databases (`id`),
     FOREIGN KEY (`owned_by`) REFERENCES mdb_users (`id`)
 ) WITH SYSTEM VERSIONING;
@@ -596,32 +597,14 @@ VALUES ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Equal operator', '=',
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Greater than or equal operator', '>=',
         'https://mariadb.com/kb/en/greater-than-or-equal/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Not equal operator', '!=', 'https://mariadb.com/kb/en/not-equal/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Addition operator', '+',
-        'https://mariadb.com/kb/en/addition-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Division operator', '/',
-        'https://mariadb.com/kb/en/division-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Modulo operator', '%', 'https://mariadb.com/kb/en/modulo-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Multiplication operator', '*',
-        'https://mariadb.com/kb/en/multiplication-operator/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Subtraction operator', '-',
-        'https://mariadb.com/kb/en/subtraction-operator-/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'LIKE', 'LIKE', 'https://mariadb.com/kb/en/like/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT LIKE', 'NOT LIKE', 'https://mariadb.com/kb/en/not-like/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IN', 'IN', 'https://mariadb.com/kb/en/in/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT IN', 'NOT IN', 'https://mariadb.com/kb/en/not-in/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS', 'IS', 'https://mariadb.com/kb/en/is/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NOT', 'IS NOT', 'https://mariadb.com/kb/en/is-not/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NOT NULL', 'IS NOT NULL', 'https://mariadb.com/kb/en/is-not-null/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'IS NULL', 'IS NULL', 'https://mariadb.com/kb/en/is-null/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'ISNULL', 'ISNULL', 'https://mariadb.com/kb/en/isnull/'),
        ('d79cb089-363c-488b-9717-649e44d8fcc5', 'REGEXP', 'REGEXP', 'https://mariadb.com/kb/en/regexp/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT REGEXP', 'NOT REGEXP', 'https://mariadb.com/kb/en/not-regexp/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise AND', '&', 'https://mariadb.com/kb/en/bitwise_and/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise OR', '|', 'https://mariadb.com/kb/en/bitwise-or/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise XOR', '^', 'https://mariadb.com/kb/en/bitwise-xor/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Bitwise NOT', '~', 'https://mariadb.com/kb/en/bitwise-not/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Left shift', '<<', 'https://mariadb.com/kb/en/shift-left/'),
-       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'Right shift', '>>', 'https://mariadb.com/kb/en/shift-right/');
+       ('d79cb089-363c-488b-9717-649e44d8fcc5', 'NOT REGEXP', 'NOT REGEXP', 'https://mariadb.com/kb/en/not-regexp/');
 
 INSERT
 INTO `mdb_ontologies` (prefix, uri, uri_pattern, sparql_endpoint, rdf_path)
diff --git a/helm/dbrepo/files/create-event-listener.jar b/helm/dbrepo/files/create-event-listener.jar
index 7072823dcbcc2d91dab2624b91f1e47fad47dbff..1d72200c19c7b9fb124773e3ffc0249d1b535e2f 100644
Binary files a/helm/dbrepo/files/create-event-listener.jar and b/helm/dbrepo/files/create-event-listener.jar differ
diff --git a/lib/python/coverage.xml b/lib/python/coverage.xml
index 4c3ca2d8955982cd6cfb705f5b102bf28d8d0be2..ac21b0bc1ed6b9f659ba578333c89e481c34ca8f 100644
--- a/lib/python/coverage.xml
+++ b/lib/python/coverage.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" ?>
-<coverage version="7.6.12" timestamp="1740131337201" lines-valid="1752" lines-covered="1699" line-rate="0.9697" branches-covered="0" branches-valid="0" branch-rate="0" complexity="0">
-	<!-- Generated by coverage.py: https://coverage.readthedocs.io/en/7.6.12 -->
+<coverage version="7.6.10" timestamp="1740478405603" lines-valid="1820" lines-covered="1743" line-rate="0.9577" branches-covered="0" branches-valid="0" branch-rate="0" complexity="0">
+	<!-- Generated by coverage.py: https://coverage.readthedocs.io/en/7.6.10 -->
 	<!-- Based on https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd -->
 	<sources>
 		<source>/home/mweise/Projects/fda-services/lib/python</source>
 	</sources>
 	<packages>
-		<package name="dbrepo" line-rate="0.9376" branch-rate="0" complexity="0">
+		<package name="dbrepo" line-rate="0.9134" branch-rate="0" complexity="0">
 			<classes>
-				<class name="RestClient.py" filename="dbrepo/RestClient.py" complexity="0" line-rate="0.9503" branch-rate="0">
+				<class name="RestClient.py" filename="dbrepo/RestClient.py" complexity="0" line-rate="0.9248" branch-rate="0">
 					<methods/>
 					<lines>
 						<line number="1" hits="1"/>
@@ -783,27 +783,20 @@
 						<line number="1679" hits="1"/>
 						<line number="1680" hits="1"/>
 						<line number="1683" hits="1"/>
-						<line number="1689" hits="1"/>
-						<line number="1690" hits="1"/>
-						<line number="1691" hits="1"/>
-						<line number="1692" hits="1"/>
-						<line number="1693" hits="1"/>
-						<line number="1694" hits="1"/>
+						<line number="1689" hits="0"/>
+						<line number="1690" hits="0"/>
+						<line number="1691" hits="0"/>
+						<line number="1692" hits="0"/>
+						<line number="1693" hits="0"/>
+						<line number="1694" hits="0"/>
 						<line number="1697" hits="1"/>
-						<line number="1716" hits="1"/>
-						<line number="1717" hits="1"/>
-						<line number="1718" hits="1"/>
-						<line number="1719" hits="1"/>
-						<line number="1720" hits="1"/>
-						<line number="1721" hits="1"/>
-						<line number="1722" hits="1"/>
-						<line number="1723" hits="1"/>
-						<line number="1724" hits="1"/>
-						<line number="1725" hits="1"/>
-						<line number="1726" hits="1"/>
-						<line number="1727" hits="1"/>
-						<line number="1728" hits="1"/>
-						<line number="1729" hits="1"/>
+						<line number="1703" hits="1"/>
+						<line number="1704" hits="1"/>
+						<line number="1705" hits="1"/>
+						<line number="1706" hits="1"/>
+						<line number="1707" hits="1"/>
+						<line number="1708" hits="1"/>
+						<line number="1711" hits="1"/>
 						<line number="1730" hits="1"/>
 						<line number="1731" hits="1"/>
 						<line number="1732" hits="1"/>
@@ -818,24 +811,70 @@
 						<line number="1741" hits="1"/>
 						<line number="1742" hits="1"/>
 						<line number="1743" hits="1"/>
+						<line number="1744" hits="1"/>
 						<line number="1745" hits="1"/>
+						<line number="1746" hits="1"/>
+						<line number="1747" hits="1"/>
 						<line number="1748" hits="1"/>
-						<line number="1768" hits="1"/>
-						<line number="1769" hits="1"/>
-						<line number="1771" hits="1"/>
-						<line number="1772" hits="1"/>
-						<line number="1773" hits="1"/>
-						<line number="1774" hits="1"/>
-						<line number="1775" hits="1"/>
-						<line number="1776" hits="1"/>
-						<line number="1777" hits="1"/>
-						<line number="1778" hits="1"/>
-						<line number="1779" hits="1"/>
-						<line number="1780" hits="1"/>
-						<line number="1781" hits="1"/>
-						<line number="1782" hits="1"/>
+						<line number="1749" hits="1"/>
+						<line number="1750" hits="1"/>
+						<line number="1751" hits="1"/>
+						<line number="1752" hits="1"/>
+						<line number="1753" hits="1"/>
+						<line number="1754" hits="1"/>
+						<line number="1755" hits="1"/>
+						<line number="1756" hits="1"/>
+						<line number="1757" hits="1"/>
+						<line number="1759" hits="1"/>
+						<line number="1762" hits="1"/>
+						<line number="1773" hits="0"/>
+						<line number="1774" hits="0"/>
+						<line number="1775" hits="0"/>
+						<line number="1776" hits="0"/>
+						<line number="1777" hits="0"/>
+						<line number="1778" hits="0"/>
+						<line number="1779" hits="0"/>
+						<line number="1780" hits="0"/>
 						<line number="1783" hits="1"/>
-						<line number="1784" hits="1"/>
+						<line number="1794" hits="0"/>
+						<line number="1795" hits="0"/>
+						<line number="1796" hits="0"/>
+						<line number="1797" hits="0"/>
+						<line number="1798" hits="0"/>
+						<line number="1799" hits="0"/>
+						<line number="1800" hits="0"/>
+						<line number="1801" hits="0"/>
+						<line number="1804" hits="1"/>
+						<line number="1810" hits="1"/>
+						<line number="1811" hits="1"/>
+						<line number="1812" hits="1"/>
+						<line number="1813" hits="1"/>
+						<line number="1814" hits="1"/>
+						<line number="1815" hits="0"/>
+						<line number="1818" hits="1"/>
+						<line number="1824" hits="1"/>
+						<line number="1825" hits="1"/>
+						<line number="1826" hits="1"/>
+						<line number="1827" hits="1"/>
+						<line number="1828" hits="1"/>
+						<line number="1829" hits="0"/>
+						<line number="1833" hits="1"/>
+						<line number="1853" hits="1"/>
+						<line number="1854" hits="1"/>
+						<line number="1856" hits="1"/>
+						<line number="1857" hits="1"/>
+						<line number="1858" hits="1"/>
+						<line number="1859" hits="1"/>
+						<line number="1860" hits="1"/>
+						<line number="1861" hits="1"/>
+						<line number="1862" hits="1"/>
+						<line number="1863" hits="1"/>
+						<line number="1864" hits="1"/>
+						<line number="1865" hits="1"/>
+						<line number="1866" hits="1"/>
+						<line number="1867" hits="1"/>
+						<line number="1868" hits="1"/>
+						<line number="1869" hits="1"/>
 					</lines>
 				</class>
 				<class name="UploadClient.py" filename="dbrepo/UploadClient.py" complexity="0" line-rate="0.52" branch-rate="0">
@@ -895,44 +934,44 @@
 						<line number="17" hits="1"/>
 						<line number="18" hits="1"/>
 						<line number="19" hits="1"/>
-						<line number="20" hits="1"/>
-						<line number="21" hits="1"/>
 						<line number="22" hits="1"/>
 						<line number="23" hits="1"/>
 						<line number="24" hits="1"/>
+						<line number="25" hits="1"/>
+						<line number="26" hits="1"/>
 						<line number="27" hits="1"/>
 						<line number="28" hits="1"/>
 						<line number="29" hits="1"/>
 						<line number="30" hits="1"/>
+						<line number="31" hits="1"/>
+						<line number="32" hits="1"/>
 						<line number="33" hits="1"/>
-						<line number="34" hits="1"/>
-						<line number="35" hits="1"/>
 						<line number="36" hits="1"/>
 						<line number="37" hits="1"/>
+						<line number="38" hits="1"/>
+						<line number="39" hits="1"/>
 						<line number="40" hits="1"/>
-						<line number="41" hits="1"/>
-						<line number="42" hits="1"/>
+						<line number="43" hits="1"/>
+						<line number="44" hits="1"/>
 						<line number="45" hits="1"/>
 						<line number="46" hits="1"/>
 						<line number="47" hits="1"/>
-						<line number="48" hits="1"/>
-						<line number="49" hits="1"/>
 						<line number="50" hits="1"/>
 						<line number="51" hits="1"/>
 						<line number="52" hits="1"/>
-						<line number="53" hits="1"/>
+						<line number="55" hits="1"/>
 						<line number="56" hits="1"/>
 						<line number="57" hits="1"/>
 						<line number="58" hits="1"/>
 						<line number="59" hits="1"/>
+						<line number="60" hits="1"/>
+						<line number="61" hits="1"/>
 						<line number="62" hits="1"/>
 						<line number="63" hits="1"/>
-						<line number="64" hits="1"/>
-						<line number="65" hits="1"/>
 						<line number="66" hits="1"/>
 						<line number="67" hits="1"/>
 						<line number="68" hits="1"/>
-						<line number="71" hits="1"/>
+						<line number="69" hits="1"/>
 						<line number="72" hits="1"/>
 						<line number="73" hits="1"/>
 						<line number="74" hits="1"/>
@@ -948,7 +987,7 @@
 						<line number="86" hits="1"/>
 						<line number="87" hits="1"/>
 						<line number="88" hits="1"/>
-						<line number="89" hits="1"/>
+						<line number="91" hits="1"/>
 						<line number="92" hits="1"/>
 						<line number="93" hits="1"/>
 						<line number="94" hits="1"/>
@@ -956,7 +995,7 @@
 						<line number="96" hits="1"/>
 						<line number="97" hits="1"/>
 						<line number="98" hits="1"/>
-						<line number="101" hits="1"/>
+						<line number="99" hits="1"/>
 						<line number="102" hits="1"/>
 						<line number="103" hits="1"/>
 						<line number="104" hits="1"/>
@@ -972,16 +1011,16 @@
 						<line number="116" hits="1"/>
 						<line number="117" hits="1"/>
 						<line number="118" hits="1"/>
-						<line number="119" hits="1"/>
-						<line number="120" hits="1"/>
+						<line number="121" hits="1"/>
+						<line number="122" hits="1"/>
 						<line number="123" hits="1"/>
 						<line number="124" hits="1"/>
 						<line number="125" hits="1"/>
 						<line number="126" hits="1"/>
 						<line number="127" hits="1"/>
+						<line number="128" hits="1"/>
+						<line number="129" hits="1"/>
 						<line number="130" hits="1"/>
-						<line number="131" hits="1"/>
-						<line number="132" hits="1"/>
 						<line number="133" hits="1"/>
 						<line number="134" hits="1"/>
 						<line number="135" hits="1"/>
@@ -989,26 +1028,24 @@
 						<line number="137" hits="1"/>
 						<line number="140" hits="1"/>
 						<line number="141" hits="1"/>
+						<line number="142" hits="1"/>
+						<line number="143" hits="1"/>
 						<line number="144" hits="1"/>
 						<line number="145" hits="1"/>
-						<line number="148" hits="1"/>
-						<line number="152" hits="1"/>
-						<line number="153" hits="1"/>
+						<line number="146" hits="1"/>
+						<line number="147" hits="1"/>
+						<line number="150" hits="1"/>
+						<line number="151" hits="1"/>
+						<line number="154" hits="1"/>
 						<line number="155" hits="1"/>
-						<line number="156" hits="1"/>
 						<line number="158" hits="1"/>
-						<line number="159" hits="1"/>
 						<line number="162" hits="1"/>
+						<line number="163" hits="1"/>
+						<line number="165" hits="1"/>
 						<line number="166" hits="1"/>
-						<line number="167" hits="1"/>
 						<line number="168" hits="1"/>
 						<line number="169" hits="1"/>
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 						<line number="992" hits="1"/>
 						<line number="993" hits="1"/>
 						<line number="994" hits="1"/>
-						<line number="995" hits="1"/>
-						<line number="996" hits="1"/>
 						<line number="997" hits="1"/>
 						<line number="998" hits="1"/>
 						<line number="999" hits="1"/>
@@ -1664,6 +1695,8 @@
 						<line number="1001" hits="1"/>
 						<line number="1002" hits="1"/>
 						<line number="1003" hits="1"/>
+						<line number="1004" hits="1"/>
+						<line number="1005" hits="1"/>
 						<line number="1006" hits="1"/>
 						<line number="1007" hits="1"/>
 						<line number="1008" hits="1"/>
@@ -1682,8 +1715,8 @@
 						<line number="1021" hits="1"/>
 						<line number="1022" hits="1"/>
 						<line number="1023" hits="1"/>
-						<line number="1024" hits="1"/>
-						<line number="1025" hits="1"/>
+						<line number="1026" hits="1"/>
+						<line number="1027" hits="1"/>
 						<line number="1028" hits="1"/>
 						<line number="1029" hits="1"/>
 						<line number="1030" hits="1"/>
@@ -1695,10 +1728,10 @@
 						<line number="1036" hits="1"/>
 						<line number="1037" hits="1"/>
 						<line number="1038" hits="1"/>
+						<line number="1039" hits="1"/>
+						<line number="1040" hits="1"/>
 						<line number="1041" hits="1"/>
 						<line number="1042" hits="1"/>
-						<line number="1043" hits="1"/>
-						<line number="1044" hits="1"/>
 						<line number="1045" hits="1"/>
 						<line number="1046" hits="1"/>
 						<line number="1047" hits="1"/>
@@ -1713,6 +1746,8 @@
 						<line number="1056" hits="1"/>
 						<line number="1057" hits="1"/>
 						<line number="1058" hits="1"/>
+						<line number="1059" hits="1"/>
+						<line number="1060" hits="1"/>
 						<line number="1061" hits="1"/>
 						<line number="1062" hits="1"/>
 						<line number="1063" hits="1"/>
@@ -1722,14 +1757,21 @@
 						<line number="1069" hits="1"/>
 						<line number="1070" hits="1"/>
 						<line number="1071" hits="1"/>
+						<line number="1072" hits="1"/>
+						<line number="1073" hits="1"/>
 						<line number="1074" hits="1"/>
-						<line number="1078" hits="1"/>
-						<line number="1079" hits="1"/>
+						<line number="1075" hits="1"/>
+						<line number="1076" hits="1"/>
+						<line number="1077" hits="1"/>
 						<line number="1080" hits="1"/>
 						<line number="1081" hits="1"/>
 						<line number="1082" hits="1"/>
+						<line number="1083" hits="1"/>
+						<line number="1084" hits="1"/>
 						<line number="1085" hits="1"/>
 						<line number="1086" hits="1"/>
+						<line number="1087" hits="1"/>
+						<line number="1088" hits="1"/>
 						<line number="1089" hits="1"/>
 						<line number="1090" hits="1"/>
 						<line number="1091" hits="1"/>
@@ -1738,21 +1780,47 @@
 						<line number="1094" hits="1"/>
 						<line number="1095" hits="1"/>
 						<line number="1096" hits="1"/>
-						<line number="1099" hits="1"/>
+						<line number="1097" hits="1"/>
 						<line number="1100" hits="1"/>
 						<line number="1101" hits="1"/>
 						<line number="1102" hits="1"/>
 						<line number="1103" hits="1"/>
-						<line number="1104" hits="1"/>
+						<line number="1106" hits="1"/>
 						<line number="1107" hits="1"/>
 						<line number="1108" hits="1"/>
 						<line number="1109" hits="1"/>
 						<line number="1110" hits="1"/>
 						<line number="1113" hits="1"/>
-						<line number="1114" hits="1"/>
-						<line number="1115" hits="1"/>
-						<line number="1116" hits="1"/>
 						<line number="1117" hits="1"/>
+						<line number="1118" hits="1"/>
+						<line number="1119" hits="1"/>
+						<line number="1120" hits="1"/>
+						<line number="1121" hits="1"/>
+						<line number="1124" hits="1"/>
+						<line number="1125" hits="1"/>
+						<line number="1128" hits="1"/>
+						<line number="1129" hits="1"/>
+						<line number="1130" hits="1"/>
+						<line number="1131" hits="1"/>
+						<line number="1132" hits="1"/>
+						<line number="1133" hits="1"/>
+						<line number="1134" hits="1"/>
+						<line number="1135" hits="1"/>
+						<line number="1138" hits="1"/>
+						<line number="1139" hits="1"/>
+						<line number="1140" hits="1"/>
+						<line number="1141" hits="1"/>
+						<line number="1142" hits="1"/>
+						<line number="1143" hits="1"/>
+						<line number="1146" hits="1"/>
+						<line number="1147" hits="1"/>
+						<line number="1148" hits="1"/>
+						<line number="1149" hits="1"/>
+						<line number="1152" hits="1"/>
+						<line number="1153" hits="1"/>
+						<line number="1154" hits="1"/>
+						<line number="1155" hits="1"/>
+						<line number="1156" hits="1"/>
 					</lines>
 				</class>
 				<class name="exceptions.py" filename="dbrepo/api/exceptions.py" complexity="0" line-rate="1" branch-rate="0">
diff --git a/lib/python/dbrepo/RestClient.py b/lib/python/dbrepo/RestClient.py
index 76eeaa18a118fcf531901469850e60232e317a0a..1177372ba1b227a73f9a460501a8282348483348 100644
--- a/lib/python/dbrepo/RestClient.py
+++ b/lib/python/dbrepo/RestClient.py
@@ -11,6 +11,7 @@ from dbrepo.api.dto import *
 from dbrepo.api.exceptions import ResponseCodeError, NotExistsError, \
     ForbiddenError, MalformedError, NameExistsError, QueryStoreError, ExternalSystemError, \
     AuthenticationError, FormatNotAvailable, RequestError, ServiceError, ServiceConnectionError
+from dbrepo.api.mapper import query_to_subset
 
 logging.basicConfig(format='%(asctime)s %(name)-12s %(levelname)-6s %(message)s', level=logging.INFO,
                     stream=sys.stdout)
@@ -720,13 +721,14 @@ class RestClient:
         raise ResponseCodeError(f'Failed to update view: response code: {response.status_code} is not '
                                 f'202 (ACCEPTED): {response.text}')
 
-    def create_view(self, database_id: str, name: str, query: str, is_public: bool, is_schema_public: bool) -> View:
+    def create_view(self, database_id: str, name: str, query: QueryDefinition, is_public: bool,
+                    is_schema_public: bool) -> ViewBrief:
         """
         Create a view in a database with given database id.
 
         :param database_id: The database id.
         :param name: The name of the created view.
-        :param query: The query of the created view.
+        :param query: The query definition of the view.
         :param is_public: The visibility of the data. If set to true the data will be publicly visible. Optional. Default: `True`.
         :param is_schema_public: The visibility of the schema metadata. If set to true the schema metadata will be publicly visible. Optional. Default: `True`.
 
@@ -740,13 +742,15 @@ class RestClient:
         :raises ServiceError: If something went wrong with obtaining the information in the search service.
         :raises ResponseCodeError: If something went wrong with the retrieval.
         """
+        database = self.get_database(database_id=database_id)
+        subset = query_to_subset(database, self.get_image(database.container.image.id), query)
         url = f'/api/database/{database_id}/view'
         response = self._wrapper(method="post", url=url, force_auth=True,
-                                 payload=CreateView(name=name, query=query, is_public=is_public,
+                                 payload=CreateView(name=name, query=subset, is_public=is_public,
                                                     is_schema_public=is_schema_public))
         if response.status_code == 201:
             body = response.json()
-            return View.model_validate(body)
+            return ViewBrief.model_validate(body)
         if response.status_code == 400:
             raise MalformedError(f'Failed to create view: {response.text}')
         if response.status_code == 403:
@@ -1300,7 +1304,7 @@ class RestClient:
         raise ResponseCodeError(f'Failed to delete database access: response code: {response.status_code} is not '
                                 f'201 (CREATED): {response.text}')
 
-    def create_subset(self, database_id: str, query: str, page: int = 0, size: int = 10,
+    def create_subset(self, database_id: str, query: QueryDefinition, page: int = 0, size: int = 10,
                       timestamp: datetime.datetime = None) -> DataFrame:
         """
         Executes a SQL query in a database where the current user has at least read access with given database id. The
@@ -1308,7 +1312,7 @@ class RestClient:
         timestamp.
 
         :param database_id: The database id.
-        :param query: The query statement.
+        :param query: The query definition.
         :param page: The result pagination number. Optional. Default: `0`.
         :param size: The result pagination size. Optional. Default: `10`.
         :param timestamp: The timestamp at which the data validity is set. Optional. Default: <current timestamp>.
@@ -1323,15 +1327,17 @@ class RestClient:
         :raises ServiceError: If something went wrong with obtaining the information in the data service.
         :raises ResponseCodeError: If something went wrong with the retrieval.
         """
-        url = f'/api/database/{database_id}/subset'
+        database = self.get_database(database_id=database_id)
+        subset = query_to_subset(database, self.get_image(database.container.image.id), query)
         params = []
         if page is not None and size is not None:
             params.append(('page', page))
             params.append(('size', size))
         if timestamp is not None:
             params.append(('timestamp', timestamp.strftime("%Y-%m-%dT%H:%M:%SZ")))
+        url = f'/api/database/{database_id}/subset'
         response = self._wrapper(method="post", url=url, headers={"Accept": "application/json"}, params=params,
-                                 payload=ExecuteQuery(statement=query))
+                                 payload=subset)
         if response.status_code == 201:
             logging.info(f'Created subset with id: {response.headers["X-Id"]}')
             return DataFrame.from_records(response.json())
@@ -1710,7 +1716,7 @@ class RestClient:
 
     def get_identifiers(self, database_id: str = None, subset_id: str = None, view_id: str = None,
                         table_id: str = None, type: IdentifierType = None, status: IdentifierStatusType = None) -> List[
-                                                                                                                       Identifier]:
+        Identifier]:
         """
         Get list of identifiers, filter by the remaining optional arguments.
 
@@ -1829,7 +1835,6 @@ class RestClient:
         raise ResponseCodeError(f'Failed to get messages: response code: {response.status_code} is not '
                                 f'200 (OK): {response.text}')
 
-
     def update_table_column(self, database_id: str, table_id: str, column_id: str, concept_uri: str = None,
                             unit_uri: str = None) -> Column:
         """
diff --git a/lib/python/dbrepo/api/dto.py b/lib/python/dbrepo/api/dto.py
index d004a9faa32e6e8975d8e90035fd9e403fabf556..fd378739cf5bb48501b18e32148a5d1110b9ce7f 100644
--- a/lib/python/dbrepo/api/dto.py
+++ b/lib/python/dbrepo/api/dto.py
@@ -12,29 +12,27 @@ Timestamp = Annotated[
 ]
 
 
+class Operator(BaseModel):
+    id: str
+    display_name: str
+    value: str
+    documentation: str
+
+
 class Image(BaseModel):
     id: str
-    registry: str
     name: str
     version: str
-    dialect: str
-    driver_class: str
-    jdbc_method: str
-    default_port: int
+    default: bool
     data_types: List[DataType] = field(default_factory=list)
+    operators: List[Operator] = field(default_factory=list)
 
 
-
-class Operator(BaseModel):
-    id: str
-    display_name: str
-    value: str
-    documentation: str
-
 class ImageBrief(BaseModel):
     id: str
     name: str
     version: str
+    default: bool
 
 
 class CreateDatabase(BaseModel):
@@ -89,8 +87,6 @@ class Container(BaseModel):
     id: str
     name: str
     internal_name: str
-    host: str
-    port: int
     image: Image
     ui_host: Optional[str] = None
     ui_port: Optional[int] = None
@@ -681,6 +677,7 @@ class Identifier(BaseModel):
     publication_day: Optional[int] = None
     publication_month: Optional[int] = None
 
+
 class Message(BaseModel):
     id: str
     type: str
@@ -707,9 +704,9 @@ class IdentifierBrief(BaseModel):
 
 class View(BaseModel):
     id: str
-    database_id: str
     name: str
     query: str
+    database_id: str
     query_hash: str
     owner: UserBrief
     internal_name: str
@@ -722,7 +719,7 @@ class View(BaseModel):
 
 class CreateView(BaseModel):
     name: str
-    query: str
+    query: Subset
     is_public: bool
     is_schema_public: bool
 
@@ -788,8 +785,59 @@ class UnitBrief(BaseModel):
     description: Optional[str] = None
 
 
-class ExecuteQuery(BaseModel):
-    statement: str
+class FilterType(str, Enum):
+    """
+    Enumeration of filter types.
+    """
+    WHERE = "where"
+    OR = "or"
+    AND = "and"
+
+
+class OrderType(str, Enum):
+    """
+    Enumeration of order types.
+    """
+    ASC = "asc"
+    DESC = "desc"
+
+
+class Filter(BaseModel):
+    type: FilterType
+    column_id: str
+    operator_id: str
+    value: str
+
+
+class FilterDefinition(BaseModel):
+    type: FilterType
+    column: str
+    operator: str
+    value: str
+
+
+class Order(BaseModel):
+    column_id: str
+    direction: Optional[OrderType] = None
+
+
+class OrderDefinition(BaseModel):
+    column: str
+    direction: Optional[OrderType] = None
+
+
+class Subset(BaseModel):
+    table_id: str
+    columns: List[str]
+    filter: Optional[List[Filter]] = None
+    order: Optional[List[Order]] = None
+
+
+class QueryDefinition(BaseModel):
+    table: str
+    columns: List[str]
+    filter: Optional[List[FilterDefinition]] = None
+    order: Optional[List[OrderDefinition]] = None
 
 
 class TitleType(str, Enum):
@@ -925,23 +973,6 @@ class IdentifierStatusType(str, Enum):
     """The identifier is a draft and can still be edited."""
 
 
-class IdentifierType(str, Enum):
-    """
-    Enumeration of identifier types.
-    """
-    TABLE = "table"
-    """The identifier identifies a table."""
-
-    DATABASE = "database"
-    """The identifier identifies a database."""
-
-    VIEW = "view"
-    """The identifier identifies a view."""
-
-    SUBSET = "subset"
-    """The identifier identifies a subset."""
-
-
 class Query(BaseModel):
     id: str
     owner: UserBrief
@@ -1007,8 +1038,8 @@ class Column(BaseModel):
     median: Optional[float] = None
     concept: Optional[ConceptBrief] = None
     unit: Optional[UnitBrief] = None
-    enums: Optional[List[str]] = field(default_factory=list)
-    sets: Optional[List[str]] = field(default_factory=list)
+    enums: Optional[List[ColumnEnum]] = field(default_factory=list)
+    sets: Optional[List[ColumnSet]] = field(default_factory=list)
     index_length: Optional[int] = None
     length: Optional[int] = None
     data_length: Optional[int] = None
diff --git a/lib/python/dbrepo/api/mapper.py b/lib/python/dbrepo/api/mapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..c062b29923f17f18f8a9d21f5c1913df2b3bb3d4
--- /dev/null
+++ b/lib/python/dbrepo/api/mapper.py
@@ -0,0 +1,40 @@
+from dbrepo.api.dto import Subset, QueryDefinition, Database, Table, Image, Filter, Order
+from dbrepo.api.exceptions import MalformedError
+
+
+def query_to_subset(database: Database, image: Image, query: QueryDefinition) -> Subset:
+    if len(query.columns) < 1:
+        raise MalformedError(f'Failed to create view: no columns selected')
+    tables: [Table] = [table for table in database.tables if table.internal_name == query.table]
+    if len(tables) != 1:
+        raise MalformedError(f'Failed to create view: table name not found in database')
+    filtered_column_ids: [str] = [column.id for column in tables[0].columns if
+                                  column.internal_name in query.columns]
+    if len(filtered_column_ids) != len(query.columns):
+        raise MalformedError(f'Failed to create view: not all columns found in database')
+    filters = []
+    if query.filter is not None:
+        for filter in query.filter:
+            # column_id
+            filter_column_ids: [str] = [column.id for column in tables[0].columns if
+                                        column.internal_name == filter.column]
+            if len(filter_column_ids) != 1:
+                raise MalformedError(f'Failed to create view: filtered column name not found in database')
+            # operator_id
+            filter_ops_ids: [str] = [op.id for op in image.operators if op.value == filter.operator]
+            if len(filter_ops_ids) != 1:
+                raise MalformedError(f'Failed to create view: filter operator not found in image')
+            filters.append(Filter(type=filter.type,
+                                  column_id=filter_column_ids[0],
+                                  operator_id=filter_ops_ids[0],
+                                  value=filter.value))
+    order = None
+    if query.order is not None:
+        for order in query.order:
+            # column_id
+            order_column_ids: [str] = [column.id for column in tables[0].columns if
+                                       column.internal_name == order.column]
+            if len(order_column_ids) != 1:
+                raise MalformedError(f'Failed to create view: order column name not found in database')
+            order.append(Order(column_id=order_column_ids[0].id, direction=order.direction))
+    return Subset(table_id=tables[0].id, columns=filtered_column_ids, filter=filters, order=order)
diff --git a/lib/python/tests/test_dtos.py b/lib/python/tests/test_dtos.py
index 3f05e24081b45deb662afed4a3b342803b6ce56a..3e99135e8b97574502939204dd131730a9bd7689 100644
--- a/lib/python/tests/test_dtos.py
+++ b/lib/python/tests/test_dtos.py
@@ -35,9 +35,10 @@ dictConfig({
 })
 
 
-class AnalyseUnitTest(unittest.TestCase):
+class DtoUnitTest(unittest.TestCase):
     schemas = None
     models: [()] = []
+    exclusions: [str] = ['EnumType']
     found: int = 0
     skipped: [str] = []
 
@@ -48,7 +49,7 @@ class AnalyseUnitTest(unittest.TestCase):
                 self.found += 1
                 if not inspect.isclass(obj):
                     continue
-                if f'{name}Dto' not in self.schemas:
+                if f'{name}Dto' not in self.schemas or name not in self.exclusions:
                     logging.debug(f'skip model {name}: OpenAPI schema definition {name}Dto not found')
                     self.skipped.append(f'{name}Dto')
                     continue
diff --git a/lib/python/tests/test_unit_container.py b/lib/python/tests/test_unit_container.py
index aae90467b504b684e96b6b0c3fa314fe83445ef6..052e2aa524787184fecb72da29c677a616f2e9f4 100644
--- a/lib/python/tests/test_unit_container.py
+++ b/lib/python/tests/test_unit_container.py
@@ -3,7 +3,7 @@ import unittest
 import requests_mock
 
 from dbrepo.RestClient import RestClient
-from dbrepo.api.dto import Container, Image, ContainerBrief, ImageBrief, DataType
+from dbrepo.api.dto import Container, Image, ContainerBrief, ImageBrief, DataType, Operator
 from dbrepo.api.exceptions import ResponseCodeError, NotExistsError, AuthenticationError, MalformedError, \
     ForbiddenError, NameExistsError
 
@@ -25,8 +25,14 @@ class ContainerUnitTest(unittest.TestCase):
                                         dialect="org.hibernate.dialect.MariaDBDialect",
                                         driver_class="org.mariadb.jdbc.Driver",
                                         jdbc_method="mariadb",
+                                        default=True,
+                                        operators=[
+                                            Operator(id="0917b17e-5d68-4ddf-94f6-f178f74a0dae",
+                                                     display_name="XOR",
+                                                     value="XOR",
+                                                     documentation="https://mariadb.com/kb/en/xor/")],
                                         data_types=[
-                                            DataType(id="a01957bf-6fed-46a3-8b13-dc6ea304a3af",
+                                            DataType(id="22975809-5496-4d67-9fd4-6689f0030f82",
                                                      display_name="SERIAL",
                                                      value="serial",
                                                      documentation="https://mariadb.com/kb/en/bigint/",
@@ -145,7 +151,8 @@ class ContainerUnitTest(unittest.TestCase):
                                running=True,
                                image=ImageBrief(id="b104648b-54d2-4d72-9834-8e0e6d428b39",
                                                 name="mariadb",
-                                                version="10.11.3"),
+                                                version="10.11.3",
+                                                default=True),
                                hash="f829dd8a884182d0da846f365dee1221fd16610a14c81b8f9f295ff162749e50")
             ]
             # mock
@@ -179,8 +186,14 @@ class ContainerUnitTest(unittest.TestCase):
                                         dialect="org.hibernate.dialect.MariaDBDialect",
                                         driver_class="org.mariadb.jdbc.Driver",
                                         jdbc_method="mariadb",
+                                        default=True,
+                                        operators=[
+                                            Operator(id="0917b17e-5d68-4ddf-94f6-f178f74a0dae",
+                                                     display_name="XOR",
+                                                     value="XOR",
+                                                     documentation="https://mariadb.com/kb/en/xor/")],
                                         data_types=[
-                                            DataType(id="a01957bf-6fed-46a3-8b13-dc6ea304a3af",
+                                            DataType(id="22975809-5496-4d67-9fd4-6689f0030f82",
                                                      display_name="SERIAL",
                                                      value="serial",
                                                      documentation="https://mariadb.com/kb/en/bigint/",
diff --git a/lib/python/tests/test_unit_database.py b/lib/python/tests/test_unit_database.py
index 3fd7ddcd60a7c78db0bfdacdef471db19361d53e..54a41cfbd79027fad93e5b2c570110ac17a4ea8f 100644
--- a/lib/python/tests/test_unit_database.py
+++ b/lib/python/tests/test_unit_database.py
@@ -83,8 +83,8 @@ class DatabaseUnitTest(unittest.TestCase):
                 image=ImageBrief(
                     id="b104648b-54d2-4d72-9834-8e0e6d428b39",
                     name='mariadb',
-                    version='11.2.2'
-                )
+                    version='11.2.2',
+                    default=True)
             )
         )
         with requests_mock.Mocker() as mock:
@@ -100,7 +100,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732', status_code=403)
             # test
             try:
-                response = RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ForbiddenError as e:
                 pass
 
@@ -110,7 +110,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732', status_code=404)
             # test
             try:
-                response = RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except NotExistsError as e:
                 pass
 
@@ -120,7 +120,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732', status_code=202)
             # test
             try:
-                response = RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ResponseCodeError as e:
                 pass
 
@@ -141,8 +141,8 @@ class DatabaseUnitTest(unittest.TestCase):
                 image=ImageBrief(
                     id="b104648b-54d2-4d72-9834-8e0e6d428b39",
                     name='mariadb',
-                    version='11.2.2'
-                )
+                    version='11.2.2',
+                    default=True)
             )
         )
         with requests_mock.Mocker() as mock:
@@ -161,9 +161,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=400)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except MalformedError as e:
                 pass
 
@@ -173,9 +173,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=403)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except ForbiddenError as e:
                 pass
 
@@ -185,9 +185,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=404)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except NotExistsError as e:
                 pass
 
@@ -197,9 +197,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=409)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except QueryStoreError as e:
                 pass
 
@@ -209,9 +209,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=502)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except ServiceConnectionError as e:
                 pass
 
@@ -221,9 +221,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=503)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except ServiceError as e:
                 pass
 
@@ -233,9 +233,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=202)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database(name='test',
-                                                                                  container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                                                  is_public=True)
+                RestClient(username="a", password="b").create_database(name='test',
+                                                                       container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                                                       is_public=True)
             except ResponseCodeError as e:
                 pass
 
@@ -245,9 +245,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.post('/api/database', status_code=404)
             # test
             try:
-                response = RestClient().create_database(name='test',
-                                                        container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
-                                                        is_public=True)
+                RestClient().create_database(name='test',
+                                             container_id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                             is_public=True)
             except AuthenticationError as e:
                 pass
 
@@ -268,8 +268,8 @@ class DatabaseUnitTest(unittest.TestCase):
                 image=ImageBrief(
                     id="b104648b-54d2-4d72-9834-8e0e6d428b39",
                     name='mariadb',
-                    version='11.2.2'
-                )
+                    version='11.2.2',
+                    default=True)
             )
         )
         with requests_mock.Mocker() as mock:
@@ -277,10 +277,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', json=exp.model_dump(),
                      status_code=202)
             # test
-            client = RestClient(username="a", password="b")
-            response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         is_public=True,
-                                                                                         is_schema_public=True)
+            response = RestClient(username="a", password="b").update_database_visibility(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                is_public=True,
+                is_schema_public=True)
             self.assertEqual(response.is_public, True)
 
     def test_update_database_visibility_400_fails(self):
@@ -289,9 +289,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=400)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except MalformedError:
                 pass
 
@@ -301,9 +302,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=403)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                response = RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except ForbiddenError:
                 pass
 
@@ -313,9 +315,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=404)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                response = RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except NotExistsError:
                 pass
 
@@ -325,9 +328,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=502)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except ServiceConnectionError:
                 pass
 
@@ -337,9 +341,10 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=503)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except ServiceError:
                 pass
 
@@ -349,16 +354,18 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/visibility', status_code=200)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                             is_public=True,
-                                                                                             is_schema_public=True)
+                RestClient(username="a", password="b").update_database_visibility(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    is_public=True,
+                    is_schema_public=True)
             except ResponseCodeError:
                 pass
 
     def test_update_database_visibility_anonymous_fails(self):
         # test
         try:
-            response = RestClient().update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732", is_public=True, is_schema_public=True)
+            RestClient().update_database_visibility(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                    is_public=True, is_schema_public=True)
         except AuthenticationError:
             pass
 
@@ -379,8 +386,8 @@ class DatabaseUnitTest(unittest.TestCase):
                 image=ImageBrief(
                     id="b104648b-54d2-4d72-9834-8e0e6d428b39",
                     name='mariadb',
-                    version='11.2.2'
-                )
+                    version='11.2.2',
+                    default=True)
             )
         )
         with requests_mock.Mocker() as mock:
@@ -388,8 +395,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', json=exp.model_dump(), status_code=202)
             # test
             client = RestClient(username="a", password="b")
-            response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+            response = RestClient(username="a", password="b").update_database_owner(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             self.assertEqual(response.owner.id, 'abdbf897-e599-4e5a-a3f0-7529884ea011')
 
     def test_update_database_owner_400_fails(self):
@@ -398,8 +406,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=400)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except MalformedError:
                 pass
 
@@ -409,8 +418,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=403)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ForbiddenError:
                 pass
 
@@ -420,8 +430,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=404)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except NotExistsError:
                 pass
 
@@ -431,8 +442,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=502)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceConnectionError:
                 pass
 
@@ -442,8 +454,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=503)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceError:
                 pass
 
@@ -453,8 +466,9 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=200)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                        user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_owner(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ResponseCodeError:
                 pass
 
@@ -464,8 +478,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/owner', status_code=404)
             # test
             try:
-                response = RestClient().update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient().update_database_owner(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                   user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except AuthenticationError:
                 pass
 
@@ -484,7 +498,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', json=exp.model_dump())
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', json=exp.model_dump())
             # test
-            response = RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+            response = RestClient(username='foo', password='bar').update_database_schema(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             self.assertEqual(exp, response)
 
     def test_update_database_schema_400_fails(self):
@@ -493,7 +508,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=400)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except MalformedError:
                 pass
 
@@ -504,7 +520,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=400)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except MalformedError:
                 pass
 
@@ -514,7 +531,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=403)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ForbiddenError:
                 pass
 
@@ -525,7 +543,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=403)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ForbiddenError:
                 pass
 
@@ -535,7 +554,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=404)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except NotExistsError:
                 pass
 
@@ -546,7 +566,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=404)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except NotExistsError:
                 pass
 
@@ -556,7 +577,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=502)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ServiceConnectionError:
                 pass
 
@@ -567,7 +589,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=502)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ServiceConnectionError:
                 pass
 
@@ -577,7 +600,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=503)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ServiceError:
                 pass
 
@@ -588,7 +612,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=503)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ServiceError:
                 pass
 
@@ -598,7 +623,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/table', status_code=202)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ResponseCodeError:
                 pass
 
@@ -609,7 +635,8 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.put('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/metadata/view', status_code=202)
             # test
             try:
-                RestClient(username='foo', password='bar').update_database_schema(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient(username='foo', password='bar').update_database_schema(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ResponseCodeError:
                 pass
 
@@ -636,7 +663,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/access', status_code=403)
             # test
             try:
-                response = RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ForbiddenError:
                 pass
 
@@ -646,7 +673,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/access', status_code=404)
             # test
             try:
-                response = RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except NotExistsError:
                 pass
 
@@ -656,7 +683,7 @@ class DatabaseUnitTest(unittest.TestCase):
             mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/access', status_code=202)
             # test
             try:
-                response = RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
+                RestClient().get_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             except ResponseCodeError:
                 pass
 
@@ -669,9 +696,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       json=exp.model_dump(),
                       status_code=202)
             # test
-            response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                     type=AccessType.READ,
-                                                                                     user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+            response = RestClient(username="a", password="b").create_database_access(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                type=AccessType.READ,
+                user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             self.assertEqual(response, exp.type)
 
     def test_create_database_access_400_fails(self):
@@ -681,9 +709,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=400)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except MalformedError:
                 pass
 
@@ -694,8 +723,9 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=400)
             # test
             try:
-                response = RestClient().create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732", type=AccessType.READ,
-                                                               user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient().create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                    type=AccessType.READ,
+                                                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except AuthenticationError:
                 pass
 
@@ -706,9 +736,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=403)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ForbiddenError:
                 pass
 
@@ -719,9 +750,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=404)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except NotExistsError:
                 pass
 
@@ -732,9 +764,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=502)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceConnectionError:
                 pass
 
@@ -745,9 +778,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=503)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceError:
                 pass
 
@@ -758,9 +792,10 @@ class DatabaseUnitTest(unittest.TestCase):
                       status_code=200)
             # test
             try:
-                response = RestClient(username="a", password="b").create_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").create_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ResponseCodeError:
                 pass
 
@@ -773,9 +808,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      json=exp.model_dump(),
                      status_code=202)
             # test
-            response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                     type=AccessType.READ,
-                                                                                     user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+            response = RestClient(username="a", password="b").update_database_access(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                type=AccessType.READ,
+                user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             self.assertEqual(response, exp.type)
 
     def test_update_database_access_400_fails(self):
@@ -785,9 +821,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=400)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except MalformedError:
                 pass
 
@@ -798,9 +835,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=403)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ForbiddenError:
                 pass
 
@@ -811,9 +849,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=404)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except NotExistsError:
                 pass
 
@@ -824,9 +863,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=502)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceConnectionError:
                 pass
 
@@ -837,9 +877,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=503)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceError:
                 pass
 
@@ -850,9 +891,10 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=200)
             # test
             try:
-                response = RestClient(username="a", password="b").update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                                         type=AccessType.READ,
-                                                                                         user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").update_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    type=AccessType.READ,
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ResponseCodeError:
                 pass
 
@@ -863,8 +905,9 @@ class DatabaseUnitTest(unittest.TestCase):
                      status_code=404)
             # test
             try:
-                response = RestClient().update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732", type=AccessType.READ,
-                                                               user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient().update_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                    type=AccessType.READ,
+                                                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except AuthenticationError:
                 pass
 
@@ -876,8 +919,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=202)
             # test
             client = RestClient(username="a", password="b")
-            RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                          user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+            RestClient(username="a", password="b").delete_database_access(
+                database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
 
     def test_delete_database_access_400_fails(self):
         with requests_mock.Mocker() as mock:
@@ -887,8 +931,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=400)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except MalformedError:
                 pass
 
@@ -900,8 +945,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=403)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ForbiddenError:
                 pass
 
@@ -913,8 +959,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=404)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except NotExistsError:
                 pass
 
@@ -926,8 +973,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=502)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceConnectionError:
                 pass
 
@@ -939,8 +987,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=503)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ServiceError:
                 pass
 
@@ -952,8 +1001,9 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=200)
             # test
             try:
-                RestClient(username="a", password="b").delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                                                              user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient(username="a", password="b").delete_database_access(
+                    database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except ResponseCodeError:
                 pass
 
@@ -965,7 +1015,8 @@ class DatabaseUnitTest(unittest.TestCase):
                 status_code=404)
             # test
             try:
-                RestClient().delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732", user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
+                RestClient().delete_database_access(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                    user_id='abdbf897-e599-4e5a-a3f0-7529884ea011')
             except AuthenticationError:
                 pass
 
diff --git a/lib/python/tests/test_unit_image.py b/lib/python/tests/test_unit_image.py
index 9b994c6f1705978c30ea3f1a24f2b92500708ee6..8930303e5399184f9d976ca7eea4540c7df24541 100644
--- a/lib/python/tests/test_unit_image.py
+++ b/lib/python/tests/test_unit_image.py
@@ -18,9 +18,10 @@ class ImageUnitTest(unittest.TestCase):
 
     def test_get_images_succeeds(self):
         with requests_mock.Mocker() as mock:
-            exp = [ImageBrief(id="5d065194-2196-42e3-83e6-d8fc658c4b66",
+            exp = [ImageBrief(id="96c1876a-7473-44fd-8115-19ca6fde32d4",
                               name="mariadb",
-                              version="11.1.3")]
+                              version="11.1.3",
+                              default=False)]
             # mock
             mock.get('/api/image', json=[exp[0].model_dump()])
             # test
diff --git a/lib/python/tests/test_unit_messages.py b/lib/python/tests/test_unit_messages.py
index 5523955c65a74ec0df5ee5ddc76d519d11269523..7d5d26e39d325d6d20587fd066d3b778bff598b6 100644
--- a/lib/python/tests/test_unit_messages.py
+++ b/lib/python/tests/test_unit_messages.py
@@ -18,7 +18,7 @@ class ImageUnitTest(unittest.TestCase):
 
     def test_get_images_succeeds(self):
         with requests_mock.Mocker() as mock:
-            exp = [Message(id="97e46776-aef2-4a6f-9e82-9d2ae556745f", type="info")]
+            exp = [Message(id="a456d7f0-9d42-48a8-bf5b-4ead85279e0e", type="info")]
             # mock
             mock.get('/api/message', json=[exp[0].model_dump()])
             # test
diff --git a/lib/python/tests/test_unit_query.py b/lib/python/tests/test_unit_query.py
index fb23a3c9491305e6be650c81c1566a985d6c9f04..44f165b9b0ba36ab2375ddcd78c6c50cd363c7d9 100644
--- a/lib/python/tests/test_unit_query.py
+++ b/lib/python/tests/test_unit_query.py
@@ -6,108 +6,257 @@ import requests_mock
 from pandas import DataFrame
 
 from dbrepo.RestClient import RestClient
-from dbrepo.api.dto import Query, QueryType, UserBrief
+from dbrepo.api.dto import Query, QueryType, UserBrief, QueryDefinition, FilterDefinition, FilterType, Database, \
+    ContainerBrief, ImageBrief, Image, Table, Constraints, PrimaryKey, TableBrief, ColumnBrief, ColumnType, \
+    Column, Operator
 from dbrepo.api.exceptions import MalformedError, NotExistsError, ForbiddenError, QueryStoreError, FormatNotAvailable, \
     ServiceError, ResponseCodeError, AuthenticationError
 
 
 class QueryUnitTest(unittest.TestCase):
+    database = Database(
+        id="6bd39359-b154-456d-b9c2-caa516a45732",
+        name='test',
+        owner=UserBrief(id='abdbf897-e599-4e5a-a3f0-7529884ea011', username='mweise'),
+        contact=UserBrief(id='8638c043-5145-4be8-a3e4-4b79991b0a16', username='mweise'),
+        exchange_name='dbrepo',
+        internal_name='test_abcd',
+        is_public=True,
+        is_schema_public=True,
+        tables=[Table(id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                      name="Some Table",
+                      description="Test Table",
+                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                      internal_name="some_table",
+                      owner=UserBrief(id='8638c043-5145-4be8-a3e4-4b79991b0a16', username='mweise'),
+                      is_versioned=True,
+                      queue_name='test',
+                      routing_key='dbrepo.test_database_1234.test',
+                      is_public=True,
+                      is_schema_public=True,
+                      constraints=Constraints(uniques=[],
+                                              foreign_keys=[],
+                                              checks=[],
+                                              primary_key=[PrimaryKey(id="1516310f-ecb5-4614-abe2-3b96114e1484",
+                                                                      table=TableBrief(
+                                                                          id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                                                          database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                                          name='Other',
+                                                                          internal_name='other',
+                                                                          description=None,
+                                                                          is_versioned=True,
+                                                                          is_public=True,
+                                                                          is_schema_public=True,
+                                                                          owned_by='8638c043-5145-4be8-a3e4-4b79991b0a16'),
+                                                                      column=ColumnBrief(
+                                                                          id="31a533b6-8ddf-43d6-ac6a-b9da597cb976",
+                                                                          table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                                                          database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                                          name='id',
+                                                                          alias=None,
+                                                                          internal_name='id',
+                                                                          type=ColumnType.BIGINT))]),
+                      columns=[Column(id="31a533b6-8ddf-43d6-ac6a-b9da597cb976",
+                                      name="ID",
+                                      ord=0,
+                                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                      table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                      internal_name="id",
+                                      type=ColumnType.BIGINT,
+                                      is_null_allowed=False),
+                               Column(id="85de93a8-834c-4cf4-9d34-f80ebd97e606",
+                                      name="Username",
+                                      ord=1,
+                                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                      table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                      internal_name="username",
+                                      type=ColumnType.VARCHAR,
+                                      is_null_allowed=False)
+                               ])],
+        container=ContainerBrief(id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                 name='MariaDB Galera 11.1.3',
+                                 internal_name='mariadb',
+                                 image=ImageBrief(id="b104648b-54d2-4d72-9834-8e0e6d428b39",
+                                                  name='mariadb',
+                                                  version='11.2.2',
+                                                  default=True)))
+    image = Image(id="b104648b-54d2-4d72-9834-8e0e6d428b39",
+                  name='mariadb',
+                  version='11.2.2',
+                  default=True,
+                  data_types=[],
+                  operators=[Operator(id="6a96bd99-be3d-4d56-8c38-b14bdfead634",
+                                      display_name="IN",
+                                      value="IN",
+                                      documentation="https://mariadb.com/kb/en/in/")])
 
     def test_create_subset_succeeds(self):
         with requests_mock.Mocker() as mock:
             exp = [{'id': 1, 'username': 'foo'}, {'id': 2, 'username': 'bar'}]
             df = DataFrame.from_records(json.dumps(exp))
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', json=json.dumps(exp),
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', json=json.dumps(exp),
                       headers={'X-Id': '1'}, status_code=201)
             # test
             client = RestClient(username="a", password="b")
             response = client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732", page=0, size=10,
                                             timestamp=datetime.datetime(2024, 1, 1, 0, 0, 0, 0, datetime.timezone.utc),
-                                            query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                            query=QueryDefinition(table="some_table",
+                                                                  columns=["id", "username"],
+                                                                  filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                           column="id",
+                                                                                           operator="IN",
+                                                                                           value="(1,2)")]))
             self.assertTrue(DataFrame.equals(df, response))
 
     def test_create_subset_400_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=400)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=400)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except MalformedError:
                 pass
 
     def test_create_subset_403_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=403)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=403)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except ForbiddenError:
                 pass
 
     def test_create_subset_404_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=404)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=404)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except NotExistsError:
                 pass
 
     def test_create_subset_417_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=417)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=417)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except QueryStoreError:
                 pass
 
     def test_create_subset_501_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=501)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=501)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except FormatNotAvailable:
                 pass
 
     def test_create_subset_503_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=503)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=503)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except ServiceError:
                 pass
 
     def test_create_subset_unknown_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=200)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', status_code=200)
             # test
             try:
                 client = RestClient(username="a", password="b")
                 client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                     query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                     query=QueryDefinition(table="some_table",
+                                                           columns=["id", "username"],
+                                                           filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except ResponseCodeError:
                 pass
 
@@ -116,13 +265,22 @@ class QueryUnitTest(unittest.TestCase):
             exp = [{'id': 1, 'username': 'foo'}, {'id': 2, 'username': 'bar'}]
             df = DataFrame.from_records(json.dumps(exp))
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', json=json.dumps(exp),
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/subset', json=json.dumps(exp),
                       headers={'X-Id': '1'}, status_code=201)
             # test
 
             client = RestClient()
             response = client.create_subset(database_id="6bd39359-b154-456d-b9c2-caa516a45732", page=0, size=10,
-                                            query="SELECT id, username FROM some_table WHERE id IN (1,2)")
+                                            query=QueryDefinition(table="some_table",
+                                                                  columns=["id", "username"],
+                                                                  filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                           column="id",
+                                                                                           operator="IN",
+                                                                                           value="(1,2)")]))
             self.assertTrue(DataFrame.equals(df, response))
 
     def test_get_subset_succeeds(self):
@@ -211,7 +369,7 @@ class QueryUnitTest(unittest.TestCase):
         with requests_mock.Mocker() as mock:
             exp = []
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', json=[])
+            mock.get(f'/api/database/{self.database.id}/subset', json=[])
             # test
             response = RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             self.assertEqual(exp, response)
@@ -343,7 +501,7 @@ class QueryUnitTest(unittest.TestCase):
                          result_number=None,
                          identifiers=[])]
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', json=[exp[0].model_dump()])
+            mock.get(f'/api/database/{self.database.id}/subset', json=[exp[0].model_dump()])
             # test
             response = RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             self.assertEqual(exp, response)
@@ -351,7 +509,7 @@ class QueryUnitTest(unittest.TestCase):
     def test_get_queries_403_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=403)
+            mock.get(f'/api/database/{self.database.id}/subset', status_code=403)
             # test
             try:
                 RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
@@ -361,7 +519,7 @@ class QueryUnitTest(unittest.TestCase):
     def test_get_queries_404_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=404)
+            mock.get(f'/api/database/{self.database.id}/subset', status_code=404)
             # test
             try:
                 RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
@@ -371,7 +529,7 @@ class QueryUnitTest(unittest.TestCase):
     def test_get_queries_503_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=503)
+            mock.get(f'/api/database/{self.database.id}/subset', status_code=503)
             # test
             try:
                 RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
@@ -381,7 +539,7 @@ class QueryUnitTest(unittest.TestCase):
     def test_get_queries_unknown_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/subset', status_code=202)
+            mock.get(f'/api/database/{self.database.id}/subset', status_code=202)
             # test
             try:
                 RestClient().get_queries(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
diff --git a/lib/python/tests/test_unit_view.py b/lib/python/tests/test_unit_view.py
index 5792d028b37726d1c3e1f29a941387c12306cfc2..cb26eeaba8584d201202f7b6693f240b36701011 100644
--- a/lib/python/tests/test_unit_view.py
+++ b/lib/python/tests/test_unit_view.py
@@ -5,17 +5,94 @@ import requests_mock
 from pandas import DataFrame
 
 from dbrepo.RestClient import RestClient
-from dbrepo.api.dto import View, ViewColumn, ColumnType, UserBrief, ViewBrief
+from dbrepo.api.dto import View, ViewColumn, ColumnType, UserBrief, ViewBrief, QueryDefinition, FilterDefinition, \
+    FilterType, Database, Table, Constraints, PrimaryKey, TableBrief, ColumnBrief, Column, ContainerBrief, ImageBrief, \
+    Image, Operator
 from dbrepo.api.exceptions import ForbiddenError, NotExistsError, MalformedError, AuthenticationError, \
     ResponseCodeError, ExternalSystemError, ServiceError, ServiceConnectionError
 
 
 class ViewUnitTest(unittest.TestCase):
+    database = Database(
+        id="6bd39359-b154-456d-b9c2-caa516a45732",
+        name='test',
+        owner=UserBrief(id='abdbf897-e599-4e5a-a3f0-7529884ea011', username='mweise'),
+        contact=UserBrief(id='8638c043-5145-4be8-a3e4-4b79991b0a16', username='mweise'),
+        exchange_name='dbrepo',
+        internal_name='test_abcd',
+        is_public=True,
+        is_schema_public=True,
+        tables=[Table(id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                      name="Some Table",
+                      description="Test Table",
+                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                      internal_name="some_table",
+                      owner=UserBrief(id='8638c043-5145-4be8-a3e4-4b79991b0a16', username='mweise'),
+                      is_versioned=True,
+                      queue_name='test',
+                      routing_key='dbrepo.test_database_1234.test',
+                      is_public=True,
+                      is_schema_public=True,
+                      constraints=Constraints(uniques=[],
+                                              foreign_keys=[],
+                                              checks=[],
+                                              primary_key=[PrimaryKey(id="1516310f-ecb5-4614-abe2-3b96114e1484",
+                                                                      table=TableBrief(
+                                                                          id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                                                          database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                                          name='Other',
+                                                                          internal_name='other',
+                                                                          description=None,
+                                                                          is_versioned=True,
+                                                                          is_public=True,
+                                                                          is_schema_public=True,
+                                                                          owned_by='8638c043-5145-4be8-a3e4-4b79991b0a16'),
+                                                                      column=ColumnBrief(
+                                                                          id="31a533b6-8ddf-43d6-ac6a-b9da597cb976",
+                                                                          table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                                                          database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                                                          name='id',
+                                                                          alias=None,
+                                                                          internal_name='id',
+                                                                          type=ColumnType.BIGINT))]),
+                      columns=[Column(id="31a533b6-8ddf-43d6-ac6a-b9da597cb976",
+                                      name="ID",
+                                      ord=0,
+                                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                      table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                      internal_name="id",
+                                      type=ColumnType.BIGINT,
+                                      is_null_allowed=False),
+                               Column(id="85de93a8-834c-4cf4-9d34-f80ebd97e606",
+                                      name="Username",
+                                      ord=1,
+                                      database_id="6bd39359-b154-456d-b9c2-caa516a45732",
+                                      table_id="029d773f-f98b-40c0-ab22-b8b1635d4fbc",
+                                      internal_name="username",
+                                      type=ColumnType.VARCHAR,
+                                      is_null_allowed=False)
+                               ])],
+        container=ContainerBrief(id="44d811a8-4019-46ba-bd57-ea10a2eb0c74",
+                                 name='MariaDB Galera 11.1.3',
+                                 internal_name='mariadb',
+                                 image=ImageBrief(id="b104648b-54d2-4d72-9834-8e0e6d428b39",
+                                                  name='mariadb',
+                                                  version='11.2.2',
+                                                  default=True)))
+    image = Image(id="b104648b-54d2-4d72-9834-8e0e6d428b39",
+                  name='mariadb',
+                  version='11.2.2',
+                  default=True,
+                  data_types=[],
+                  operators=[Operator(id="6a96bd99-be3d-4d56-8c38-b14bdfead634",
+                                      display_name="IN",
+                                      value="IN",
+                                      documentation="https://mariadb.com/kb/en/in/")])
 
     def test_get_views_empty_succeeds(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', json=[])
+            mock.get(f'/api/database/{self.database.id}/view', json=[])
             # test
             response = RestClient().get_views(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             self.assertEqual([], response)
@@ -33,7 +110,7 @@ class ViewUnitTest(unittest.TestCase):
                              is_public=True,
                              is_schema_public=True)]
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', json=[exp[0].model_dump()])
+            mock.get(f'/api/database/{self.database.id}/view', json=[exp[0].model_dump()])
             # test
             response = RestClient().get_views(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
             self.assertEqual(exp, response)
@@ -41,7 +118,7 @@ class ViewUnitTest(unittest.TestCase):
     def test_get_views_404_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=404)
+            mock.get(f'/api/database/{self.database.id}/view', status_code=404)
             # test
             try:
                 response = RestClient().get_views(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
@@ -51,7 +128,7 @@ class ViewUnitTest(unittest.TestCase):
     def test_get_views_unknown_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.get('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=202)
+            mock.get(f'/api/database/{self.database.id}/view', status_code=202)
             # test
             try:
                 response = RestClient().get_views(database_id="6bd39359-b154-456d-b9c2-caa516a45732")
@@ -192,133 +269,207 @@ class ViewUnitTest(unittest.TestCase):
 
     def test_create_view_succeeds(self):
         with requests_mock.Mocker() as mock:
-            exp = View(id="1b3449d2-780e-4683-9af0-8733e608a4aa",
+            exp = ViewBrief(id="1b3449d2-780e-4683-9af0-8733e608a4aa",
                        name="Data",
                        internal_name="data",
                        database_id="6bd39359-b154-456d-b9c2-caa516a45732",
                        initial_view=False,
-                       query="SELECT id FROM mytable WHERE deg > 0",
+                       query="SELECT id FROM some_table WHERE id IN (1,2)",
                        query_hash="94c74728b11a690e51d64719868824735f0817b7",
-                       owner=UserBrief(id='8638c043-5145-4be8-a3e4-4b79991b0a16', username='mweise'),
+                       owned_by='8638c043-5145-4be8-a3e4-4b79991b0a16',
                        is_public=True,
-                       is_schema_public=True,
-                       columns=[ViewColumn(id="1b3449d2-780e-4683-9af0-8733e608a4aa",
-                                           ord=0,
-                                           name="id",
-                                           internal_name="id",
-                                           database_id="6bd39359-b154-456d-b9c2-caa516a45732",
-                                           type=ColumnType.BIGINT,
-                                           is_null_allowed=False)],
-                       identifiers=[])
+                       is_schema_public=True)
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', json=exp.model_dump(), status_code=201)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', json=exp.model_dump(), status_code=201)
             # test
             client = RestClient(username="a", password="b")
             response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
                                           is_public=True, is_schema_public=True,
-                                          query="SELECT id FROM mytable WHERE deg > 0")
+                                          query=QueryDefinition(table="some_table",
+                                                                columns=["id"],
+                                                                filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                         column="id",
+                                                                                         operator="IN",
+                                                                                         value="(1,2)")]))
             self.assertEqual(exp, response)
 
     def test_create_view_400_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=400)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=400)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except MalformedError:
                 pass
 
     def test_create_view_403_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=403)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=403)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except ForbiddenError:
                 pass
 
     def test_create_view_404_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=404)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=404)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except NotExistsError:
                 pass
 
     def test_create_view_423_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=423)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=423)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except ExternalSystemError:
                 pass
 
     def test_create_view_502_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=502)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=502)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except ServiceConnectionError:
                 pass
 
     def test_create_view_503_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=503)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=503)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except ServiceError:
                 pass
 
     def test_create_view_unknown_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=200)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=200)
             # test
             try:
                 client = RestClient(username="a", password="b")
-                response = client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                              is_public=True, is_schema_public=True,
-                                              query="SELECT id FROM mytable WHERE deg > 0")
+                client.create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                   is_public=True, is_schema_public=True,
+                                   query=QueryDefinition(table="some_table",
+                                                         columns=["id"],
+                                                         filter=[FilterDefinition(type=FilterType.WHERE,
+                                                                                  column="id",
+                                                                                  operator="IN",
+                                                                                  value="(1,2)")]))
             except ResponseCodeError:
                 pass
 
     def test_create_view_anonymous_fails(self):
         with requests_mock.Mocker() as mock:
             # mock
-            mock.post('/api/database/6bd39359-b154-456d-b9c2-caa516a45732/view', status_code=404)
+            mock.get(f'/api/image/{self.image.id}', json=self.image.model_dump(),
+                     status_code=200)
+            mock.get(f'/api/database/{self.database.id}', json=self.database.model_dump(),
+                     status_code=200)
+            mock.post(f'/api/database/{self.database.id}/view', status_code=404)
             # test
             try:
-                response = RestClient().create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
-                                                    is_public=True, is_schema_public=True,
-                                                    query="SELECT id FROM mytable WHERE deg > 0")
+                RestClient().create_view(database_id="6bd39359-b154-456d-b9c2-caa516a45732", name="Data",
+                                         is_public=True, is_schema_public=True,
+                                         query=QueryDefinition(table="some_table",
+                                                               columns=["id"],
+                                                               filter=[
+                                                                   FilterDefinition(type=FilterType.WHERE,
+                                                                                    column="id",
+                                                                                    operator="IN",
+                                                                                    value="(1,2)")]))
             except AuthenticationError:
                 pass